Phase difference amplification using LCSLM and multiple-beam-interference

Kiyofumi Matsuda; Geoffrey T. Bold; Tomas H. Barnes; Chander Prakash Grover; Colin J. R. Sheppard

doi:10.1117/12.530096

19 November 2003 Phase difference amplification using LCSLM and multiple-beam-interference

Kiyofumi Matsuda, Geoffrey T. Bold, Tomas H. Barnes, Chander Prakash Grover, Colin J. R. Sheppard

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.530096
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

Phase difference amplification is a technique to produce a contour map of an object in which the optical path difference corresponding to one fringe equals a small fraction of the wavelength of light. In this paper we report a method for phase difference amplification using multiple beam interference in conjunction with an optically addressed liquid crystal spatial light modulator. This interferometer operates in near real time and is ten times more sensitive than a conventional interferometer.

Citation Download Citation

Kiyofumi Matsuda, Geoffrey T. Bold, Tomas H. Barnes, Chander Prakash Grover, and Colin J. R. Sheppard "Phase difference amplification using LCSLM and multiple-beam-interference", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.530096

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KEYWORDS

Beam splitters

Interferometers

Liquid crystals

Phase interferometry

Crystal optics

Collimation

Diffraction

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