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Proceedings Paper

Fresnel lens arrays for wave front inspection
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Paper Abstract

A wavefront sensor is supposed to analyze the phase distribution of a wave without any external reference as used in most conventional interferometric systems. It is shown here that an efficient wavefront sensor can be implemented by an array of two-beam common path inversion interferometers. Each element of the array consists of two Fresnel lenses in a confocal configuration. The wavefront data can be extracted from a superposition of the zero- order, undiffracted wave and the twice diffracted first order wave. The result is a high sensitivity, compact and stable interferometric wavefront sensor.

Paper Details

Date Published: 20 April 1995
PDF: 7 pages
Proc. SPIE 2404, Diffractive and Holographic Optics Technology II, (20 April 1995); doi: 10.1117/12.207494
Show Author Affiliations
Boris Spektor, Technion--Israel Institute of Technology (Israel)
Joseph Shamir, Technion--Israel Institute of Technology (Israel)

Published in SPIE Proceedings Vol. 2404:
Diffractive and Holographic Optics Technology II
Ivan Cindrich; Sing H. Lee, Editor(s)

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