Proceedings PaperA Sample And Hold Technique For Serial To Parallel Digital Optical Data Conversion
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A sample and hold technique is described by utilizing a newly observed cross modulation effect. In the modulation effect a light beam from a LED source is transmitted through a semi insulating GaAs sample. When an optical pulse hits the sample in the presence of a voltage pulse an enhanced absorption of LED light is observed after the optical pulse. The absorption is held by the duration of the voltage pulse. This effect can be utilized in spatial light modulators for serial to parallel data conversion and in many other applications involving electrically addressable memory.