Using an optically-addressable liquid crystal spatial light modulator to generate phase only filters

Manjula D. Sharma; Jock McOrist; Colin J. R. Sheppard; Kiyo Matsuda

doi:10.1117/12.524831

19 November 2003 Using an optically-addressable liquid crystal spatial light modulator to generate phase only filters

Manjula D. Sharma, Jock McOrist, Colin J. R. Sheppard, Kiyo Matsuda

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.524831
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

Pupil filters can be used to overcome the limits in axial resolution imposed by diffraction in imaging systems. Axial behavior of filters is important for depth resolution in confocal microscopy. Phase filters have the advantage of improved efficiency by virtue of allowing more light to be transmitted, reduced tolerance errors, and in some case increased super resolving performance. In this paper we present a theoretical investigation of phase only filters. In addition, we describe the generation of a phase only filter from an amplitude filter using an optically-addressable liquid crystal spatial light modulator (LCSLM).

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Manjula D. Sharma, Jock McOrist, Colin J. R. Sheppard, and Kiyo Matsuda "Using an optically-addressable liquid crystal spatial light modulator to generate phase only filters", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.524831

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KEYWORDS

Phase only filters

Liquid crystals

Crystal optics

Optical filters

Phase shift keying

Image filtering

Imaging systems

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