Av. Dooghin et al., RECTIFICATION PROPERTY OF PHOTOCONDUCTIVE CRYSTAL UNDER SPATIALLY ASYMMETRIC ILLUMINATION, IEEE journal of quantum electronics, 31(3), 1995, pp. 501-504
Generation of direct current how through a photoconductive crystal wit
h applied ac electric field under illumination by two intensity patter
ns with fundamental and doubled spatial frequencies is theoretically i
nvestigated, Analysis is restricted to the ease of large temporal freq
uency of external ac field.