NASA NTRS · 19880046344
Infrared predetection dynamic range compression via photorefractive crystals
Abstract
The theoretical basis and practical implementation of a predetection dynamic-range compression technique for IR sensor systems are discussed. The approach takes advantage of the nonlinear intensity dependence of the gain coefficient in photorefractive crystals. Its feasibility is demonstrated in numerical computations using the experimental data of Cheng and Partovi (1986) on two-wave mixing in GaAs at 1.15 micron wavelength.
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Liu, Hua-Kuang, Cheng, Li-Jen. 1988-03-15. Infrared predetection dynamic range compression via photorefractive crystals. https://ntrs.nasa.gov/citations/19880046344
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