Abstract
In the microchannel spatial light modulator (MSLM),1 a photocathode converts a 2-D addressing-light pattern into an electron image, which then passes through a 2-D microchannel plate (MCP) electron amplifier onto a mirror deposited on a LiNbO3 electrooptic crystal. A readout light beam enters the opposite side of the crystal and reflects off the mirror to form a modulated output beam. The electron image stores on the crystal for months, but a grid between the MCP and crystal allows electron removal by secondary emission. By exploiting the secondary emission dynamics, the MSLM can intrinsically be operated in a binary hard-clip thresholding mode.1,2
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