Diffractive filter design for SLMs in optical processing and pattern recognition systems

Joseph Neil Mait; Joseph van der Gracht; Scott D. Sarama

doi:10.1117/12.140403

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2 March 1993 Diffractive filter design for SLMs in optical processing and pattern recognition systems

Joseph Neil Mait, Joseph van der Gracht, Scott D. Sarama

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Proceedings Volume 1732, Holographics International '92; (1993) https://doi.org/10.1117/12.140403
Event: Holographics International '92, 1992, London, United Kingdom

Abstract

In contrast to imaging and interconnect applications, which require fixed diffractive optical elements, applications such as optical image processing and target recognition require diffractive elements that can be altered dynamically in real-time and, therefore, require the use of spatial light modulators (SLMs). Present SLM technology, however, has limited spatial resolution and space-bandwidth which affects system performance. We present techniques for designing diffractive filters for display on SLMs in coherent and incoherent image processing systems. Laboratory results are presented for a coherent matched filter design for display on a binary phase SLM.

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Joseph Neil Mait, Joseph van der Gracht, and Scott D. Sarama "Diffractive filter design for SLMs in optical processing and pattern recognition systems", Proc. SPIE 1732, Holographics International '92, (2 March 1993); https://doi.org/10.1117/12.140403

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