Lu-yi Wang

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Experimental results are presented on the efficiency of holographic transmission gratings formed in bleached silver halide emulsions (Agfa-Gevaert 8E75HD) with illumination at 820 nm. For comparison, data for planar gratings recorded at 780 and 632.8 nm in emulsions that were similarly processed are also given. Measurement of the spectral optical density(More)
A transient charge-transport model is developed to evaluate the resolution limits of optically addressed spatial light modulators. The effect of bulk charge diffusion on resolution is largely independent of the mobility in the semiconductor layer, and the resolution is limited by the lateral diffusion length of charge carriers in transit. The effects of(More)
We have experimentally investigated the jitter time of a GaAs photoconductive switch (PCSS) when it is triggered by a laser pulse with 30 ns pulse width and 1064 nm wavelength. It is found that the jitter time decreases as the incident laser pulse energy increases from 0.40 to 1.6 mJ. In addition, a theoretical analysis indicates that the jitter time is(More)
We present modeling and experimental results from the use of a 1310-nm-wavelength through-wafer optical microprobe in conjunction with a microstructure grating to monitor the motion of a lateral comb resonator stage. The optical signal that results from shuttle interaction with the microprobe beam exhibits a peak-to-valley dynamic range that corresponds to(More)
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