Compensating for Light Soaking Effects in Optically Addressed Spatial Light Modulators Incorporating A-Si:H Photodiodes Journal Article uri icon



  • ABSTRACTWe characterize the effects of light soaking on optically addressed spatial light modulators (OASLMs) incorporating a-Si:H photodiodes and relate these effects to the light-induced degradation observed in the photodiodes. After illuminating the OASLMs with white light for up to 100 hours, the rise time of the OASLM optical response decreases, the fall time increases, and the undesirable modulation in the absence of write light (electrical modulation) also increases. We were able to compensate for these effects and approximately restore the original optical transfer characteristics by applying a dc offset voltage across the device. The results can be interpreted by considering series resistance changes in the a-Si:H photodiode.

publication date

  • January 1, 1990

has restriction

  • closed

Date in CU Experts

  • April 11, 2014 11:31 AM

Full Author List

  • Walker CM; Landreth B; Moddel G

author count

  • 3

Other Profiles

International Standard Serial Number (ISSN)

  • 0272-9172

Electronic International Standard Serial Number (EISSN)

  • 1946-4274

Additional Document Info


  • 192


  • 467