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20 October 1997 Spatial light modulator using electrically switched diaphragm
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Abstract
A phenomenon of optical activity reversal under repolarization in ferroelectric Pb5Ge3O11 is used in order to build up an electrically switched diaphragm. A small coercive field allows to control efficiently the transverse dimension of parallel light beam. Unlike the analogous devices based on the birefringent domains, the given construction is simpler and can work with incoherent light. The device can be utilized as a spatial filer with controlled spatial frequency pass band in optical analog information systems.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yaroslav I. Shopa "Spatial light modulator using electrically switched diaphragm", Proc. SPIE 3238, Current Ukrainian Research in Optics and Photonics: Optoelectronic and Hybrid Optical/Digital Systems for Image Processing, (20 October 1997); https://doi.org/10.1117/12.284800
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