Measurement of the chromatic variation of index of refraction gradients.
The theory of multiple-wavelength ac interferometry has been developed. A system has been constructed and used to measure simultaneously the index of refraction profile and the chromatic variation of the index of refraction gradient. Samples of gradient-index glass manufactured by Bausch & Lomb (Rochester, N.Y.), University of Rochester (Rochester, N.Y.), and Schott Optical (Mainz, West Germany) have been characterized.
Moore
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DT
University of Rochester, Institute of Optics, Rochester, New York 14627, USA.
Ryan
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DP