selected publications conference proceeding A second generation of low thermal noise cryogenic silicon resonators. Journal of Physics : Conference Series. 2015 Probing many-body interactions in an optical lattice clock. Annals of Physics. 311-351. 2014 Crystalline coatings for ultra-low-noise optical cavities 2013 High Brightness XUV Frequency Combs via Intracavity High Harmonic Generation. EPJ Web of Conferences. 2012 Frequency Comb Spectroscopy - Mid-Infrared to Extreme Ultraviolet 2012 Broadband Direct Frequency Comb Spectroscopy in the Mid-Infrared 2011 Supression of collisional frequency shifts in an optical lattice clock. 862-862. 2011 Prospects for milli-hertz linewidth lasers using collective emission. 629-633. 2010 POLAR MOLECULES NEAR QUANTUM DEGENERACY. 247-+. 2009 Optical Interferometers with Reduced Sensitivity to Thermal Noise. 1748-1748. 2009 Phase-stabilized, 1.5-W mid-infrared frequency comb. 808-+. 2009 Measurement of gravitational time delay using drag-free spacecraft and an optical clock. Proceedings of the International Astronomical Union. 414-+. 2009 QUANTUM METROLOGY WITH LATTICE-CONFINED ULTRACOLD SR ATOMS. 73-+. 2008 High-power, mHz linewidth Yb:fiber optical frequency comb for high harmonic generation. Springer Series in Chemical Physics. 840-+. 2008 Strontium optical lattice clock with high accuracy and stability. 90-+. 2008 Strontium Optical Lattice Clock: 10(-16) Uncertainty. 449-+. 2008 10 W average power frequency comb with sub-mHz relative linewidths from an Yb:fiber system. 1305-+. 2008 Ultra-high resolution spectroscopy with a Sr-87 optical lattice clock. Proceedings of SPIE. 2007 Strontium optical lattice clock at JILA. 1269-+. 2007 Femtosecond enhancement cavity - direct frequency comb spectroscopy and coherent extreme nonlinear optics. Springer Series in Chemical Physics. 121-+. 2006 Precision measurement based on ultracold atoms and cold molecules. AIP Conference Proceedings. 80-+. 2006 High spectral resolution and accuracy studies for a Sr optical lattice clock. 145-+. 2006 High-harmonic generation at 100 MHz repetition frequency using a femtosecond enhancement cavity. Springer Series in Optical Sciences. 59-+. 2005 Laser stabilization of the local oscillator for an optical atomic clock. 87-88. 2005 Optical frequency standards based on ultra-cold strontium atoms. 77-78. 2005 Phase Coherent Manipulation of Light: From precision spectroscopy to extreme nonlinear optics. 1-2. 2005 Remote synchronization of mode-locked fiber lasers. 151-152. 2005 Improving laser coherence. 3-13. 2005 Precision measurement meets ultrafast control. 14-24. 2005 Simple and compact Hz-level linewidth laser system via improved mounting configuration of a reference cavity. 1408-1410. 2005 Frequency transfer of optical standards through a fiber network using 1550-nm mode-locked sources. 180-184. 2004 Coherent amplification of femtosecond pulses with passive enhancement cavities. Springer Series in Chemical Physics. 16-18. 2004 Frequency transfer of optical standards through a fiber network using 1550-nm mode-locked sources. Springer Series in Chemical Physics. 834-836. 2004 Phase stabilization of mode-locked lasers. Journal of Modern Optics. 201-219. 2003 Using the phase coherence of carrier-envelope phase-stabilized fs lasers. Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS. 393-394. 2003 Ultracold atomic strontium: From unconventional laser cooling and future optical standards to photon-free anisotropic many body physics. 34-36. 2003 Applications of ferntosecond laser comb to nonlinear molecular spectroscopy. Lecture Notes in Physics. 275-295. 2003 Carrier-envelope phase stabilization of modelocked lasers. Springer Series in Optical Sciences. 151-163. 2003 Ultrafast-laser stabilization with application to pulse amplification by use of passive optical cavities. Springer Series in Optical Sciences. 179-184. 2003 Satellite-satellite laser links for future gravity missions. Space Science Reviews. 377-384. 2003 From relative to absolute: optical phase measurement and control in ultrashort pulses. Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS. 167-168. 2002 Absolute frequencies, linewidths, and hyperfine structures of iodine transitions near the dissociation limit (523 to 498 nm). 420-421. 2002 Optical frequency measurement and standards. 277-277. 2002 Optical frequency standards and measurement. IEEE Transactions on Instrumentation and Measurement. 227-231. 2002 Coherent anti-Stokes Raman scattering microscopy with near-infrared ps pulses synchronized within 20 fs. Springer Series in Chemical Physics. 184-186. 2002 Long term (> 300 seconds) carrier-envelope phase coherence of a train of ultrashort pulses. Springer Series in Chemical Physics. 178-180. 2002 Issues and applications in ultra-sensitive molecular spectroscopy. Proceedings of SPIE. 58-69. 2002 Time meets frequency: Phase stabilization of ultrafast pulses and optical frequency metrology with modelocked lasers. Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS. 903-903. 2001 Carrier-envelope phase stabilization of modelocked lasers. Proceedings of SPIE. 183-192. 2001 High-resolution Rb two-photon spectroscopy with ultrafast lasers. Proceedings of SPIE. 50-58. 2001 Synchronization and phase lock of two mode-locked femtosecond lasers. Proceedings of SPIE. 105-111. 2001 Direct RF to optical frequency measurements with a femtosecond laser comb. 687-688. 2000 Absolute frequency atlas of 9 molecular I-2 lines at 532 nm. 197-198. 1998 Absolute frequency atlas of molecular I2 lines at 532 nm. IEEE Transactions on Instrumentation and Measurement. 544-549. 1998 Stabilization and frequency measurement of the I-2-stabilized Nd : YAG laser. 151-152. 1998 Stabilization and frequency measurement of the I2-stabilized Nd:YAG laser. IEEE Transactions on Instrumentation and Measurement. 583-586. 1998 Cavity-enhanced frequency modulation spectroscopy: Advancing optical detection sensitivity and laser frequency stabilization. Proceedings of SPIE. 85-96. 1998 Ultrastable optical frequency reference at 1.064 mu m using a C2HD molecular overtone transition. IEEE Transactions on Instrumentation and Measurement. 178-182. 1996 ACCURATE CANCELLATION (TO MILLIHERTZ LEVELS) OF OPTICAL PHASE NOISE DUE TO VIBRATION OR INSERTION PHASE IN FIBER TRANSMITTED LIGHT. Proceedings of SPIE. 165-175. 1995 STABILITY AND ABSOLUTE FREQUENCY OF MOLECULAR IODINE TRANSITIONS NEAR 532-NM. 22-34. 1995 ABSOLUTE FREQUENCY OF THE MOLECULAR-IODINE TRANSITION R(56)32-0 NEAR 532 NM. IEEE Transactions on Instrumentation and Measurement. 151-154. 1994 journal article Direct comparison of two spin-squeezed optical clock ensembles at the 10-17 level. Nature Physics. 208-213. 2024 Excess Noise and Photoinduced Effects in Highly Reflective Crystalline Mirror Coatings. Physical Review X. 2023 Realizing spin squeezing with Rydberg interactions in an optical clock. Nature. 734-+. 2023 Fermionic quantum processing with programmable neutral atom arrays. Proceedings of the National Academy of Sciences of the United States of America. 2023 Ergodicity breaking in rapidly rotating C60 fullerenes. Science. 778-783. 2023 Systematic and statistical uncertainty evaluation of the HfF plus electron electric dipole moment experiment. Physical Review A (PRA). 2023 An improved bound on the electron's electric dipole moment. Science. 46-50. 2023 Breath analysis by ultra-sensitive broadband laser spectroscopy detects SARS-CoV-2 infection. Journal of Breath Research. 2023 High-fidelity imaging of a band insulator in a three-dimensional optical lattice clock. Physical Review A (PRA). 2023 Blue-Detuned Magneto-optical Trap of Molecules. Physical Review Letters. 2023 Frequency stability of cryogenic silicon cavities with semiconductor crystalline coatings. Optica. 464-470. 2023 Robust Nuclear Spin Entanglement via Dipolar Interactions in Polar Molecules. Physical Review Letters. 2023 Evaluation of Lattice Light Shift at Low 10-19 Uncertainty for a Shallow Lattice Sr Optical Clock. Physical Review Letters. 2023 Substrate-transferred GaAs/AlGaAs crystalline coatings for gravitational-wave detectors. Applied Physics Letters. 2023 Tunable itinerant spin dynamics with polar molecules. Nature. 70-+. 2023 Optical atomic clock aboard an Earth-orbiting space station (OACESS): enhancing searches for physics beyond the standard model in space. Quantum Science and Technology. 2023 Tunable VUV frequency comb for 229mTh nuclear spectroscopy. Optics Letters. 5591-5594. 2022 Hamiltonian engineering of spin-orbit-coupled fermions in a Wannier-Stark optical lattice clock. Science Advances. 2022 Reactions between layer-resolved molecules mediated by dipolar spin exchange. Science. 1299-+. 2022 Disentangling Pauli Blocking of Atomic Decay from Cooperative Radiation and Atomic Motion in a 2D Fermi Gas. Physical Review Letters. 2022 Spectroscopy on the electron-electric-dipole-moment-sensitive states of ThF+. Physical Review A (PRA). 2022 Resolving the gravitational redshift across a millimetre-scale atomic sample. Nature. 420-+. 2022 High Phase-Space Density of Laser-Cooled Molecules in an Optical Lattice. Physical Review Letters. 2021 Pauli blocking of atom-light scattering. Science. 979-+. 2021 Ultrasensitive multispecies spectroscopic breath analysis for real-time health monitoring and diagnostics. Proceedings of the National Academy of Sciences of the United States of America. 2021 Tuning of dipolar interactions and evaporative cooling in a three-dimensional molecular quantum gas. Nature Physics. 1144-+. 2021 Dipole-Dipole Frequency Shifts in Multilevel Atoms. Physical Review Letters. 2021 Floquet engineering ultracold polar molecules to simulate topological insulators. Physical Review A (PRA). 2021 Realizing Hopf Insulators in Dipolar Spin Systems. Physical Review Letters. 2021 Experimental Constraint on Axionlike Particles over Seven Orders of Magnitude in Mass. Physical Review Letters. 2021 Frequency ratio measurements at 18-digit accuracy using an optical clock network. Nature. 564-+. 2021 Dynamical Generation of Spin Squeezing in Ultracold Dipolar Molecules. Physical Review Letters. 2021 Extreme-ultraviolet frequency combs for precision metrology and attosecond science. Nature Photonics. 175-186. 2021 Quantum Simulators: Architectures and Opportunities. PRX Quantum. 2021 Measurement of the 27Al+ and 87Sr absolute optical frequencies. Metrologia. 2021 Half-minute-scale atomic coherence and high relative stability in a tweezer clock. Nature. 408-+. 2020 Resonant collisional shielding of reactive molecules using electric fields. Science. 1324-+. 2020 Dipolar evaporation of reactive molecules to below the Fermi temperature. Nature. 239-+. 2020 Observation of Efimov Universality across a Nonuniversal Feshbach Resonance in 39K. Physical Review Letters. 2020 Thermodynamics of a deeply degenerate SU(N)-symmetric Fermi gas. Nature Physics. 2020 Precision Metrology Meets Cosmology: Improved Constraints on Ultralight Dark Matter from Atom-Cavity Frequency Comparisons. Physical Review Letters. 2020 Optical atomic clock comparison through turbulent air. Physical Review Research. 2020 Noncollinear Enhancement Cavity for Record-High Out-coupling Efficiency of an Extreme-UV Frequency Comb. Physical Review Letters. 2020 Quantum many-body physics with ultracold polar molecules: Nanostructured potential barriers and interactions. Physical Review A (PRA). 2020 Sub-Doppler Cooling and Compressed Trapping of YO Molecules at μK Temperatures. Physical Review X. 2020 Second-Scale Coherence Measured at the Quantum Projection Noise Limit with Hundreds of Molecular Ions. Physical Review Letters. 2020 Thermalization and Sub-Poissonian Density Fluctuations in a Degenerate Molecular Fermi Gas. Physical Review Letters. 2020 Variational Spin-Squeezing Algorithms on Programmable Quantum Sensors. Physical Review Letters. 2019 Precision Test of the Limits to Universality in Few-Body Physics. Physical Review Letters. 2019 JILA SrI optical lattice clock with uncertainty of 2.0 x 10-18. Metrologia. 2019 Engineering spin squeezing in a 3D optical lattice with interacting spin-orbit-coupled fermions. Physical Review Research. 2019 SAGE: A proposal for a space atomic gravity explorer. European Physical Journal D. 2019 Demonstration of a Timescale Based on a Stable Optical Carrier. Physical Review Letters. 2019 Seconds-scale coherence on an optical clock transition in a tweezer array. Science. 93-+. 2019 Demonstration of 4.8 x10-17 stability at 1s for two independent optical clocks. Nature Photonics. 714-+. 2019 Engineering Quantum States of Matter for Atomic Clocks in Shallow Optical Lattices. Physical Review Letters. 2019 Atoms and molecules in the search for time-reversal symmetry violation. Nature Reviews Physics. 510-521. 2019 Visible and ultraviolet laser spectroscopy of ThF. Journal of Molecular Spectroscopy. 1-16. 2019 A degenerate Fermi gas of polar molecules. Science. 853-+. 2019 Crystalline optical cavity at 4 K with thermal-noise-limited instability and ultralow drift. Optica. 240-243. 2019 Rovibrational quantum state resolution of the C60 fullerene. Science. 49-+. 2019 Broadband molecular spectroscopy with optical frequency combs. Journal of Molecular Spectroscopy. 66-78. 2019 3D Magneto-Optical Trap of Yttrium Monoxide. Physical Review Letters. 2018 Emergence of multi-body interactions in a fermionic lattice clock. Nature. 369-+. 2018 A nozzle for high-density supersonic gas jets at elevated temperatures. Review of Scientific Instruments. 2018 Phase-matched extreme-ultraviolet frequency-comb generation. Nature Photonics. 387-+. 2018 Phase-stabilized 100 mW frequency comb near 10 μm. Applied Physics B: Lasers and Optics. 2018 Frequency Measurements of Superradiance from the Strontium Clock Transition. Physical Review X. 2018 Two Clock Transitions in Neutral Yb for the Highest Sensitivity to Variations of the Fine-Structure Constant. Physical Review Letters. 2018 Dynamics of interacting fermions under spin-orbit coupling in an optical lattice clock. Nature Physics. 399-+. 2018 Imaging Optical Frequencies with 100 μHz Precision and 1.1 μm Resolution. Physical Review Letters. 2018 Direct measurements of DOCO isomers in the kinetics of OD. Science Advances. 2018 Ultrastable Silicon Cavity in a Continuously Operating Closed-Cycle Cryostat at 4 K. Physical Review Letters. 2017 Precision Measurement of the Electron's Electric Dipole Moment Using Trapped Molecular Ions. Physical Review Letters. 2017 A Fermi-degenerate three-dimensional optical lattice clock. Science. 90-93. 2017 Cold molecules: Progress in quantum engineering of chemistry and quantum matter. Science. 1002-1010. 2017 Radio Frequency Magneto-Optical Trapping of CaF with High Density. Physical Review Letters. 2017 1.5 μm Lasers with Sub-10 mHz Linewidth. Physical Review Letters. 2017 One-dimensional magneto-optical compression of a cold CaF molecular beam. New Journal of Physics. 2017 Spin-orbit-coupled fermions in an optical lattice clock. Nature. 66-+. 2017 Gas-phase broadband spectroscopy using active sources: progress, status, and applications. Journal of the Optical Society of America. B, Optical physics. 104-129. 2017 New frontiers for quantum gases of polar molecules. Nature Physics. 13-20. 2017 Gravitational wave detection with optical lattice atomic clocks. Physical Review D. 2016 Three-photon absorption in optical parametric oscillators based on OP-GaAs. Optics Letters. 5405-5408. 2016 Direct frequency comb measurement of OD plus CO → DOCO kinetics. Science. 444-448. 2016 Laser slowing of CaF molecules to near the capture velocity of a molecular MOT. Journal of Physics B: Atomic, Molecular and Optical Physics. 2016 Light scattering from dense cold atomic media. Physical Review A (PRA). 2016 Quantum Network of Atom Clocks: A Possible Implementation with Neutral Atoms. Physical Review Letters. 2016 High-performance near- and mid-infrared crystalline coatings. Optica. 647-656. 2016 Precision measurement and frequency metrology with ultracold atoms. National Science Review. 189-200. 2016 Continuous probing of cold complex molecules with infrared frequency comb spectroscopy. Nature. 517-+. 2016 Collective atomic scattering and motional effects in a dense coherent medium. Nature Communications. 2016 Entanglement and spin squeezing in a network of distant optical lattice clocks. Physical Review A (PRA). 2016 Synthetic Spin-Orbit Coupling in an Optical Lattice Clock. Physical Review Letters. 2016 Creation of a low-entropy quantum gas of polar molecules in an optical lattice. Science. 659-662. 2015 Optical Feshbach resonances: Field-dressed theory and comparison with experiments. Physical Review A: Atomic, Molecular and Optical Physics. 2015 Optical atomic clocks. Reviews of Modern Physics. 637-701. 2015 Rotational State Microwave Mixing for Laser Cooling of Complex Diatomic Molecules. Physical Review Letters. 2015 Progress on the optical lattice clock. Comptes Rendus Physique. 499-505. 2015 Prospects for a narrow line MOT in YO. New Journal of Physics. 2015 Cavity-Enhanced Field-Free Molecular Alignment at a High Repetition Rate. Physical Review Letters. 2015 Systematic evaluation of an atomic clock at 2 x 10 -18 total uncertainty. Nature Communications. 2015 Observation of Motion-Dependent Nonlinear Dispersion with Narrow-Linewidth Atoms in an Optical Cavity. Physical Review Letters. 2015 Many-Body Dynamics of Dipolar Molecules in an Optical Lattice. Physical Review Letters. 2014 Spectroscopic observation of SU(N)-symmetric interactions in Sr orbital magnetism. Science. 1467-1473. 2014 Ultrastable laser with average fractional frequency drift rate below 5 x 10-19/s. Optics Letters. 5102-5105. 2014 A quantum network of clocks. Nature Physics. 582-587. 2014 Mid-Infrared Time-Resolved Frequency Comb Spectroscopy of Transient Free Radicals. Journal of Physical Chemistry Letters. 2241-2246. 2014 Extreme ultraviolet radiation with coherence time greater than 1 s. Nature Photonics. 530-536. 2014 State-specific detection of trapped HfF+ by photodissociation. Journal of Molecular Spectroscopy. 12-15. 2014 Heisenberg-Limited Atom Clocks Based on Entangled Qubits. Physical Review Letters. 2014 Reduction of residual amplitude modulation to 1 x 10-6 for frequency modulation and laser stabilization. Optics Letters. 1980-1983. 2014 Suppressing the Loss of Ultracold Molecules Via the Continuous Quantum Zeno Effect. Physical Review Letters. 2014 An optical lattice clock with accuracy and stability at the 10-18 level. Nature. 71-+. 2014 Cold State-Selected Molecular Collisions and Reactions. Annual Review of Physical Chemistry. 501-518. 2014 Precision Spectroscopy of Polarized Molecules in an Ion Trap. Science. 1220-1222. 2013 ULTRACOLD ATOMS An exotic quantum object. Nature Physics. 694-695. 2013 Observation of dipolar spin-exchange interactions with lattice-confined polar molecules. Nature. 521-+. 2013 Optical Spectrum Analyzer with Quantum-Limited Noise Floor. Physical Review Letters. 2013 A Quantum Many-Body Spin System in an Optical Lattice Clock. Science. 632-636. 2013 Tenfold reduction of Brownian noise in high-reflectivity optical coatings. Nature Photonics. 644-650. 2013 Electric-field-induced inelastic collisions between magnetically trapped hydroxyl radicals. Molecular Physics. 1798-1804. 2013 Realizing Fractional Chern Insulators in Dipolar Spin Systems. Physical Review Letters. 2013 2D Magneto-Optical Trapping of Diatomic Molecules. Physical Review Letters. 2013 Cavity-enhanced optical frequency comb spectroscopy in the mid-infrared application to trace detection of hydrogen peroxide. Applied Physics B: Lasers and Optics. 163-175. 2013 Evaporative cooling of the dipolar hydroxyl radical. Nature. 396-+. 2012 Comparison of Two Independent Sr Optical Clocks with 1 x 10-17 Stability at 103 s. Physical Review Letters. 2012 Anisotropic Polarizability of Ultracold Polar 40K87Rb Molecules. Physical Review Letters. 2012 A sub-40-mHz-linewidth laser based on a silicon single-crystal optical cavity. Nature Photonics. 687-692. 2012 Broadband velocity modulation spectroscopy of HfF+: Towards a measurement of the electron electric dipole moment. Chemical Physics Letters. 1-11. 2012 Introduction to Ultracold Molecules: New Frontiers in Quantum and Chemical Physics. Chemical Reviews. 4801-4802. 2012 Hydrogen-Peroxide-Enhanced Nonthermal Plasma Effluent for Biomedical Applications. IEEE Transactions on Plasma Science. 1984-1991. 2012 Mid-infrared virtually imaged phased array spectrometer for rapid and broadband trace gas detection. Optics Letters. 3285-3287. 2012 Full phase stabilization of a Yb:fiber femtosecond frequency comb via high-bandwidth transducers. Optics Letters. 2196-2198. 2012 Microwave state transfer and adiabatic dynamics of magnetically trapped polar molecules. Physical Review A: Atomic, Molecular and Optical Physics. 2012 Operating a 87Sr Optical Lattice Clock With High Precision and at High Density. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 416-425. 2012 Long-Lived Dipolar Molecules and Feshbach Molecules in a 3D Optical Lattice. Physical Review Letters. 2012 Direct frequency comb spectroscopy in the extreme ultraviolet. Nature. 68-71. 2012 Probing many-body spin interactions with an optical lattice clock. Annals of Physics. 2012 Extreme nonlinear response of ultranarrow optical transitions in cavity QED for laser stabilization. Physical Review A: Atomic, Molecular and Optical Physics. 2011 Quantum-Noise-Limited Optical Frequency Comb Spectroscopy. Physical Review Letters. 2011 Inelastic collisions and density-dependent excitation suppression in a 87Sr optical lattice clock. Physical Review A: Atomic, Molecular and Optical Physics. 2011 Power optimization of XUV frequency combs for spectroscopy applications [Invited]. Optics Express. 23483-23493. 2011 State-dependent lattices for quantum computing with alkaline-earth-metal atoms. European Physical Journal D. 207-217. 2011 Extreme Nonlinear Optics in a Femtosecond Enhancement Cavity. Physical Review Letters. 2011 Tunable Superfluidity and Quantum Magnetism with Ultracold Polar Molecules. Physical Review Letters. 2011 Frequency Comb Velocity-Modulation Spectroscopy. Physical Review Letters. 2011 Measurement of Optical Feshbach Resonances in an Ideal Gas. Physical Review Letters. 2011 Ultrabroadband coherent supercontinuum frequency comb. Physical Review A: Atomic, Molecular and Optical Physics. 2011 Resolved Atomic Interaction Sidebands in an Optical Clock Transition. Physical Review Letters. 2011 Controlling the quantum stereodynamics of ultracold bimolecular reactions. Nature Physics. 502-507. 2011 Polar molecules in the quantum regime. Physics Today. 27-31. 2011 Broadband phase noise suppression in a Yb-fiber frequency comb. Optics Letters. 743-745. 2011 Suppression of Collisional Shifts in a Strongly Interacting Lattice Clock. Science. 1043-1046. 2011 Cold heteromolecular dipolar collisions. Physical Chemistry, Chemical Physics - PCCP. 19059-19066. 2011 Optical frequency comb spectroscopy. Faraday Discussions. 23-31. 2011 Mid-infrared Fourier transform spectroscopy with a broadband frequency comb. Optics Express. 21861-21872. 2010 Analysis of trace impurities in semiconductor gas via cavity-enhanced direct frequency comb spectroscopy. Applied Physics B: Lasers and Optics. 917-924. 2010 Direct absorption imaging of ultracold polar molecules. Physical Review A: Atomic, Molecular and Optical Physics. 2010 Simple piezoelectric-actuated mirror with 180 kHz servo bandwidth. Optics Express. 9739-9746. 2010 Dipolar collisions of polar molecules in the quantum regime. Nature. 1324-1328. 2010 Two-orbital SU(N) magnetism with ultracold alkaline-earth atoms. Nature Physics. 289-295. 2010 Precision Measurement of Fermionic Collisions Using an Sr-87 Optical Lattice Clock With 1 x 10(-16) Inaccuracy. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 574-582. 2010 Quantum-State Controlled Chemical Reactions of Ultracold Potassium-Rubidium Molecules. Science. 853-857. 2010 Single-atom cavity QED and optomicromechanics. Physical Review A: Atomic, Molecular and Optical Physics. 2010 Controlling the Hyperfine State of Rovibronic Ground-State Polar Molecules. Physical Review Letters. 2010 Cavity opto-mechanics using an optically levitated nanosphere. Proceedings of the National Academy of Sciences of the United States of America. 1005-1010. 2010 Cavity-Enhanced Direct Frequency Comb Spectroscopy: Technology and Applications. Annual Review of Analytical Chemistry. 175-205. 2010 Rabi spectroscopy and excitation inhomogeneity in a one-dimensional optical lattice clock. Physical Review A: Atomic, Molecular and Optical Physics. 2009 Vacuum-ultraviolet frequency combs from below-threshold harmonics. Nature Physics. 815-820. 2009 Strong Coupling of a Mechanical Oscillator and a Single Atom. Physical Review Letters. 2009 Cold and ultracold molecules: science, technology and applications. New Journal of Physics. 2009 Phase-stabilized, 1.5 W frequency comb at 2.8-4.8 μm. Optics Letters. 1330-1332. 2009 Prospects for a Millihertz-Linewidth Laser. Physical Review Letters. 2009 Probing Interactions Between Ultracold Fermions. Science. 360-363. 2009 Alkaline-Earth-Metal Atoms as Few-Qubit Quantum Registers. Physical Review Letters. 2009 Testing ultrafast mode-locking at microhertz relative optical linewidth. Optics Express. 558-568. 2009 Tomography of a supersonically cooled molecular jet using cavity-enhanced direct frequency comb spectroscopy. Chemical Physics Letters. 1-8. 2009 A dipolar gas of ultracold molecules. Physical Chemistry, Chemical Physics - PCCP. 9626-9639. 2009 Prospects for application of ultracold Sr-2 molecules in precision measurements. Physical Review A: Atomic, Molecular and Optical Physics. 2009 Ultracold polar molecules near quantum degeneracy. Faraday Discussions. 351-359. 2009 Optical Interferometers with Reduced Sensitivity to Thermal Noise. Physical Review Letters. 2008 Magneto-optical Trap for Polar Molecules. Physical Review Letters. 2008 Molecular Beam Collisions with a Magnetically Trapped Target. Physical Review Letters. 2008 Quantum Computing with Alkaline-Earth-Metal Atoms. Physical Review Letters. 2008 A high phase-space-density gas of polar molecules. Science. 231-235. 2008 The absolute frequency of the 87Sr optical clock transition. Metrologia. 539-548. 2008 Ultracold strontium clock: Applications to the measurement of fundamental constant variations. European Physical Journal: Special Topics. 9-18. 2008 Determination of Sr properties for a high-accuracy optical clock. Physical Review A (PRA). 2008 Efficient state transfer in an ultracold dense gas of heteronuclear molecules. Nature Physics. 622-626. 2008 Piecewise adiabatic population transfer in a molecule via a wave packet. Physical Review Letters. 2008 Spin squeezing in optical lattice clocks via lattice-based QND measurements. New Journal of Physics. 2008 Heteronuclear molecules in an optical dipole trap. Physical Review A: Atomic, Molecular and Optical Physics. 2008 Mitigation of loss within a molecular Stark decelerator. European Physical Journal D. 197-209. 2008 Quantum state engineering and precision metrology using state-insensitive light traps. Science. 1734-1738. 2008 Cavity-enhanced direct frequency comb spectroscopy. Applied Physics B: Lasers and Optics. 397-414. 2008 Optical frequency comb with submillihertz linewidth and more than 10 W average power. Nature Photonics. 355-359. 2008 Prospects for precision measurements of atomic helium using direct frequency comb spectroscopy. European Physical Journal D. 43-55. 2008 Control of four-level quantum coherence via discrete spectral shaping of an optical frequency comb. Physical Review Letters. 2008 Efficient output coupling of intracavity high-harmonic generation. Optics Letters. 1099-1101. 2008 Collisional stability of fermionic Feshbach molecules. Physical Review Letters. 2008 New limits on coupling of fundamental constants to gravity using 87Sr optical lattice clocks. Physical Review Letters. 2008 Rulers of light. SCIENTIFIC AMERICAN. 74-81. 2008 Sr lattice clock at 1 x 10-16 fractional uncertainty by remote optical evaluation with a Ca clock. Science. 1805-1808. 2008 Highly coherent spectroscopy of ultracold atoms and molecules in optical lattices. ChemPhysChem. 375-382. 2008 Cavity-enhanced optical frequency comb spectroscopy: application to human breath analysis. Optics Express. 2387-2397. 2008 Precision test of mass-ratio variations with lattice-confined ultracold molecules. Physical Review Letters. 2008 Prospects for the cavity-assisted laser cooling of molecules. Physical Review A: Atomic, Molecular and Optical Physics. 2008 Direct frequency comb spectroscopy. Advances in Atomic, Molecular and Optical Physics. 1-60. 2008 PRECISION MEASUREMENT BASED ON ULTRACOLD ATOMS AND COLD MOLECULES. International Journal of Modern Physics D. 2481-2494. 2007 Coherent optical phase transfer over a 32-km fiber with 1 s instability at 10(-17). Physical Review Letters. 2007 Cavity-enhanced similariton Yb-fiber laser frequency comb: 3 X 10(14) W/Cm-2 peak intensity at 136 MHz. Optics Letters. 2870-2872. 2007 Nuclear spin effects in optical lattice clocks. Physical Review A: Atomic, Molecular and Optical Physics. 2007 Optical metrology - Everything under control. Nature Photonics. 447-448. 2007 Magnetoelectrostatic trapping of ground state OH molecules. Physical Review Letters. 2007 Precise control of molecular dynamics with a femtosecond frequency comb. Physical Review Letters. 2007 Compact, thermal-noise-limited optical cavity for diode laser stabilization at 1 X 10-15. Optics Letters. 641-643. 2007 87Sr lattice clock with inaccuracy below 10-15. Physical Review Letters. 2007 Sr-87 lattice clock with inaccuracy below 10(-15). Physical Review Letters. 2007 Cavity-ringdown molecular spectroscopy based on an optical frequency comb at 1.45-1.65 μm. Optics Letters. 307-309. 2007 Remote transfer of ultrastable frequency references via fiber networks. Review of Scientific Instruments. 2007 Optical clock and ultracold collisions with trapped strontium atoms. Hyperfine Interactions. 55-64. 2007 Photoassociation adiabatic passage of ultracold Rb atoms to form ultracold Rb-2 molecules. Physical Review A: Atomic, Molecular and Optical Physics. 2007 Cancellation of stark shifts in optical lattice clocks by use of pulsed Raman and electromagnetically induced transparency techniques. Physical Review Letters. 2006 OH hyperfine ground state: From precision measurement to molecular qubits. Physical Review A: Atomic, Molecular and Optical Physics. 2006 Optical atomic coherence at the 1-second time scale. Science. 1430-1433. 2006 Vibration-induced elastic deformation of Fabry-Perot cavities. Physical Review A: Atomic, Molecular and Optical Physics. 2006 ANYL 184-Broadband cavity ringdown spectroscopy for rapid and sensitive molecular detection. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 2006 Output coupling methods for cavity-based high-harmonic generation. Optics Express. 8189-8197. 2006 Synchronization of mode-locked femtosecond lasers through a fiber link. Optics Letters. 1951-1953. 2006 Production of cold formaldehyde molecules for study and control of chemical reaction dynamics with hydroxyl radicals. Physical Review A: Atomic, Molecular and Optical Physics. 2006 Narrow line photoassociation in an optical lattice. Physical Review Letters. 2006 Tapered semiconductor amplifiers for optical frequency combs in the near infrared. Optics Letters. 1337-1339. 2006 High resolution atomic coherent control via spectral phase manipulation of an optical frequency comb. Physical Review Letters. 2006 Cold molecule spectroscopy for constraining the evolution of the fine structure constant. Physical Review Letters. 2006 Broadband cavity ringdown spectroscopy for sensitive and rapid molecular detection. Science. 1595-1599. 2006 Contribution of thermal noise to frequency stability of rigid optical cavity via Hertz-linewidth lasers. Physical Review A (PRA). 2006 Systematic study of the 87Sr clock transition in an optical lattice - art. no. 033003. Physical Review Letters. 2006 Mode-locked fiber laser frequency-controlled with an intracavity electro-optic modulator. Optics Letters. 2948-2950. 2005 Simple and compact 1-Hz laser system via an improved mounting configuration of a reference cavity. Optics Letters. 1815-1817. 2005 Direct frequency comb measurements of absolute optical frequencies and population transfer dynamics - art. no. 023001. Physical Review Letters. 2005 Stabilized femtosecond lasers for precision frequency metrology and ultrafast science. Laser Physics. 1010-1013. 2005 Phase-coherent frequency combs in the vacuum ultraviolet via high-harmonic generation inside a femtosecond enhancement cavity - art. no. 193201. Physical Review Letters. 2005 Remote transfer of a high-stability and ultralow-jitter timing signal. Optics Letters. 1225-1227. 2005 High-accuracy optical clock via three-level coherence in neutral bosonic 88Sr - art. no. 173002. Physical Review Letters. 2005 Characterization of the molecular iodine electronic wave functions and potential energy curves through hyperfine interactions in the B0+u(3IIu) state. Journal of the Optical Society of America. B, Optical physics. 951-961. 2005 Precision spectroscopy and density-dependent frequency shifts in ultracold Sr - art. no. 153001. Physical Review Letters. 2005 Nonlinear dynamics inside femtosecond enhancement cavities. Optics Express. 1672-1678. 2005 Demonstration of a HeNe/CH4-based optical molecular clock. Optics Letters. 570-572. 2005 Precise measurements of optical cavity dispersion and mirror coating properties via femtosecond combs. Optics Express. 882-888. 2005 United time-frequency spectroscopy for dynamics and global structure. Science. 2063-2068. 2004 Experimental implementation of optical clockwork without carrier-envelope phase control. Optics Letters. 2806-2808. 2004 High-repetition-rate coherent femtosecond pulse amplification with an external passive optical cavity. Optics Letters. 2812-2814. 2004 Narrow line cooling and momentum-space crystals - art. no. 063413. Physical Review A (PRA). 2004 Efficient Stark deceleration of cold polar molecules. European Physical Journal D. 351-358. 2004 Cold free-radical molecules in the laboratory frame - art. no. 043410. Physical Review A (PRA). 2004 A pulsed, low-temperature beam of supersonically cooled free radical OH molecules. Chemical Physics Letters. 53-57. 2004 Narrow line cooling: Finite photon recoil dynamics - art. no. 073003. Physical Review Letters. 2004 Investigation of a grating-based stretcher/compressor for carrier-envelope phase stabilized fs pulses. Optics Express. 3493-3499. 2004 Precise frequency transfer through a fiber network by use of 1.5-μm mode-locked sources. Optics Letters. 1554-1556. 2004 Absolute measurement of a long, arbitrary distance to less than an optical fringe. Optics Letters. 1153-1155. 2004 Precision stabilization of femtosecond lasers to high-finesse optical cavities - art. no. 051803. Physical Review A (PRA). 2004 Hyperfine interactions and perturbation effects in the B0u+(3Πu) state of 127I2. Journal of the Optical Society of America. B, Optical physics. 820-832. 2004 Controlling dipole-dipole frequency shifts in a lattice-based optical atomic clock - art. no. 023810. Physical Review A (PRA). 2004 Chemical imaging of photoresists with coherent anti-Stokes Raman scattering (CARS) microscopy. Journal of Physical Chemistry B. 1296-1301. 2004 Carrier-envelope phase stabilization of single and multiple femtosecond lasers. Topics in Applied Physics. 317-342. 2004 Phase space manipulation of cold free radical OH molecules - art. no. 243001. Physical Review Letters. 2003 Orthogonal control of the frequency comb dynamics of a mode-locked laser diode. Optics Letters. 2405-2407. 2003 Passively mode-locked glass waveguide laser with 14-fs timing jitter. Optics Letters. 2411-2413. 2003 Extensive, high-resolution measurement of hyperfine interactions: precise investigations of molecular potentials and wave functions. Chemical Physics Letters. 777-783. 2003 Picosecond-pulse amplification with an external passive optical cavity. Optics Letters. 1835-1837. 2003 Delivery of high-stability optical and microwave frequency standards over an optical fiber network. Journal of the Optical Society of America. B, Optical physics. 1459-1467. 2003 Detailed studies and control of intensity-related dynamics of femtosecond frequency combs from mode-locked Ti:sapphire lasers. IEEE Journal of Selected Topics in Quantum Electronics. 1018-1024. 2003 Highly phase stable mode-locked laser's. IEEE Journal of Selected Topics in Quantum Electronics. 1002-1010. 2003 Optical frequency combs: From frequency metrology to optical phase control. IEEE Journal of Selected Topics in Quantum Electronics. 1041-1058. 2003 Control of the frequency comb from a mode-locked erbium-doped fiber laser (vol 10, pg 1404, 2002). Optics Express. 1345-1345. 2003 Single-stage sub-Doppler cooling of alkaline earth atoms - art. no. 193002. Physical Review Letters. 2003 Intensity-related dynamics of femtosecond frequency combs. Optics Letters. 851-853. 2003 Ultralow-jitter, 1550-nm mode-locked semiconductor laser synchronized to a visible optical frequency standard. Optics Letters. 813-815. 2003 Cooling and trapping of atomic strontium. Journal of the Optical Society of America. B, Optical physics. 968-976. 2003 Comparison of independent optical frequency measurements using a portable iodine-stabilized Nd:YAG laser. IEEE Transactions on Instrumentation and Measurement. 240-244. 2003 Flexible and rapidly configurable femtosecond pulse generation in the mid-IR. Optics Letters. 370-372. 2003 Colloquium: Femtosecond optical frequency combs. Reviews of Modern Physics. 325-342. 2003 Applications of optical cavities in modern atomic, molecular, and optical physics. Advances in Atomic, Molecular and Optical Physics. 1-83. 2003 Control of the frequency comb from a mode-locked Erbium-doped fiber laser. Optics Express. 1404-1410. 2002 Femtosecond pulse amplification by coherent addition in a passive optical cavity. Optics Letters. 1848-1850. 2002 Long-term carrier-envelope phase coherence. Optics Letters. 1436-1438. 2002 Synchronization of two passively mode-locked, picosecond lasers within 20 fs for coherent anti-Stokes Raman scattering microscopy. Review of Scientific Instruments. 2843-2848. 2002 Dynamics in a two-level atom magneto-optical trap - art. no. 011401. Physical Review A (PRA). 2002 High-sensitivity coherent anti-Stokes Raman scattering microscopy with two tightly synchronized picosecond lasers. Optics Letters. 1168-1170. 2002 Continuously tunable, precise, single frequency optical signal generator. Optics Express. 515-520. 2002 Sub-Doppler molecular-iodine transitions near the dissociation limit (523-498 nm) (vol 27, pg 571, 2002). Optics Letters. 1076-1076. 2002 Phase-coherent synthesis of optical frequencies and waveforms. Applied Physics B: Lasers and Optics. S27-S34. 2002 Sub-Doppler molecular-iodine transitions near the dissociation limit (523-498 nm). Optics Letters. 571-573. 2002 Absolute-frequency measurement of the iodine-based length standard at 514.67 nm. Applied Physics B: Lasers and Optics. 597-601. 2002 Nonlinear phase noise generated in air-silica microstructure fiber and its effect on carrier-envelope phase. Optics Letters. 445-447. 2002 Active synchronization and carrier phase locking of two separate mode-locked femtosecond lasers. Journal of Modern Optics. 401-409. 2002 Subfemtosecond timing jitter between two independent, actively synchronized, mode-locked lasers. Optics Letters. 312-314. 2002 Molecular iodine clock - art. no. 270801. Physical Review Letters. 2001 Molecular iodine clock.. Physical Review Letters. 270801. 2001 Ultrasensitive spectroscopy, the ultrastable lasers, the ultrafast lasers, and the seriously nonlinear fiber: A new alliance for physics and metrology. IEEE Journal of Quantum Electronics. 1482-1492. 2001 Optical frequency synthesis based on mode-locked lasers. Review of Scientific Instruments. 3749-3771. 2001 Characterization of high-finesse mirrors: Loss, phase shifts, and mode structure in an optical cavity - art. no. 033804. Physical Review A (PRA). 2001 Phase-coherent optical pulse synthesis from separate femtosecond lasers. Science. 1286-1289. 2001 Sub-10-femtosecond active synchronization of two passively mode-locked Ti:sapphire oscillators - art. no. 021802. Physical Review A (PRA). 2001 Cooling of a single atom in an optical trap inside a resonator - art. no. 013407. Physical Review A (PRA). 2001 Direct RF to optical frequency measurements with a femtosecond laser comb. IEEE Transactions on Instrumentation and Measurement. 552-555. 2001 Rotation dependence of electric quadrupole hyperfine interaction in the ground state of molecular iodine by high-resolution laser spectroscopy. Journal of the Optical Society of America. B, Optical physics. 379-387. 2001 Absolute frequency measurement of the iodine-stabilized He-Ne laser at 633 nm. Applied Physics B: Lasers and Optics. 221-226. 2001 Phase-coherent multilevel two-photon transitions in cold Rb atoms: Ultrahigh-resolution spectroscopy via frequency-stabilized femtosecond laser - art. no. 011402. Physical Review A (PRA). 2001 Precision phase control of an ultrawide-bandwidth femtosecond laser: a network of ultrastable frequency marks across the visible spectrum. Optics Letters. 1675-1677. 2000 Accuracy comparison of absolute optical frequency measurement between harmonic-generation synthesis and a frequency-division femtosecond comb. Physical Review Letters. 3797-3800. 2000 Measurement of mirror birefringence at the sub-ppm level: Proposed application to a test of QED - art. no. 013815. Physical Review A (PRA). 2000 Cavity ringdown heterodyne spectroscopy: High sensitivity with microwatt light power - art. no. 061802. Physical Review A (PRA). 2000 High-resolution frequency standard at 1030 nm for Yb : YAG solid-state lasers. Journal of the Optical Society of America. B, Optical physics. 927-931. 2000 Direct link between microwave and optical frequencies with a 300 THz femtosecond laser comb. Physical Review Letters. 5102-5105. 2000 Optical phase locking in the microradian domain: potential applications to NASA spaceborne optical measurements. Optics Letters. 1838-1840. 1999 Trapping of single atoms in cavity QED. Physical Review Letters. 4987-4990. 1999 Broadband optical frequency comb generation with a phase-modulated parametric oscillator. Optics Letters. 1747-1749. 1999 Ultrasensitive frequency-modulation spectroscopy enhanced by a high-finesse optical cavity:: theory and application to overtone transitions of C2H2 and C2HD. Journal of the Optical Society of America. B, Optical physics. 2255-2268. 1999 Frequency comparison of 127I2-stabilized Nd:YAG lasers. IEEE Transactions on Instrumentation and Measurement. 532-536. 1999 Ultrasensitive detections in atomic and molecular physics: demonstration in molecular overtone spectroscopy. Journal of the Optical Society of America. B, Optical physics. 6-15. 1998 Highly selective terahertz optical frequency comb generator (vol 22, pg 301, 1997). Optics Letters. 746-746. 1997 Highly selective terahertz optical frequency comb generator. Optics Letters. 301-303. 1997 Thermally induced self-locking of an optical cavity by overtone absorption in acetylene gas. Journal of the Optical Society of America. B, Optical physics. 2041-2054. 1996 Hyperfine structure and absolute frequency of the Rb-87 5P(3/2) state. Optics Letters. 1280-1282. 1996 Sub-Doppler optical frequency reference at 1.064 mu m by means of ultrasensitive cavity-enhanced frequency modulation spectroscopy of a C2HD overtone transition. Optics Letters. 1000-1002. 1996 DELIVERING THE SAME OPTICAL FREQUENCY AT 2 PLACES - ACCURATE CANCELLATION OF PHASE NOISE INTRODUCED BY AN OPTICAL-FIBER OR OTHER TIME-VARYING PATH. Optics Letters. 1777-1779. 1994
awards and honors Fellows, conferred by American Academy of Arts and Sciences, 2026 Vannevar Bush Faculty Fellowship, conferred by Department of Defense, 2022 National Security Science and Engineering Faculty Fellows, conferred by Department of Defense, 2022 Breakthrough Prize in Fundamental Physics, conferred by Breakthrough Prizes, 2022 Herbert Walther Award, conferred by Optica, 2022 Julius Springer Prize for Applied Physics, conferred by Springer, 2021 Micius Quantum Prize, conferred by Micius Quantum Foundation, 2020 Highly Cited Researcher, conferred by Web of Science, 2019 Norman F. Ramsey Prize in Atomic, Molecular and Optical Physics, and in Precision Tests of Fundamental Laws and Symmetries, conferred by American Physical Society, 2019 Highly Cited Researcher, conferred by Web of Science, 2018 Highly Cited Researcher, conferred by Web of Science, 2017 Highly Cited Researcher, conferred by Web of Science, 2016 Highly Cited Researcher, conferred by Web of Science, 2015 Rocky Mountain Eagle Award (Scientific Project or Achievement), conferred by Colorado Federal Executive Board, 2014 Gold Medal, conferred by U.S. Department of Commerce, 2014 Highly Cited Researcher, conferred by Web of Science, 2014 Gold Medal, conferred by U.S. Department of Commerce, 2011 Frew Fellow, conferred by Australian Academy of Science, 2011 NAS Members, conferred by National Academy of Sciences, 2011 European Frequency and Time Award, conferred by European Frequency and Time Forum, 2009 Gordon and Betty Moore Distinguished Scholar, conferred by Gordon and Betty Moore Foundation, 2008 Zeiss Research Award, conferred by ZEISS International, 2007 I.I. Rabi Prize in Atomic, Molecular and Optical Physics, conferred by American Physical Society, 2007 Friedrich Wilhelm Bessel Research Award, conferred by Alexander von Humboldt Foundation, 2006 Fellows, conferred by Optica, 2006 William F. Meggers Award, conferred by Optica, 2006 Arthur S. Flemming Award, conferred by President of the United States of America, 2005 Fellow, conferred by National Institute of Standards and Technology, 2004 Fellow, conferred by American Physical Society, 2004 Presidential Early Career Awards for Scientists and Engineers, conferred by President of the United States of America, 2003 Presidential Early Career Awards for Scientists and Engineers, conferred by President of the United States of America, 2002 Gold Medal, conferred by U.S. Department of Commerce, 2001 Adolph Lomb Medal, conferred by Optica, 1999