Spatial light modulator using electrically switched diaphragm

Yaroslav I. Shopa

doi:10.1117/12.284800

20 October 1997 Spatial light modulator using electrically switched diaphragm

Yaroslav I. Shopa

Proceedings Volume 3238, Current Ukrainian Research in Optics and Photonics: Optoelectronic and Hybrid Optical/Digital Systems for Image Processing; (1997) https://doi.org/10.1117/12.284800
Event: Optoelectronic and Hybrid Optical/Digital Systems for Image Processing, 1997, none, Ukraine

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.

Citation Download Citation

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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