New interferometric method for measuring refractive index distribution in GRIN optical blanks

Ludmila A. Gerasimova; A. V. Fedorov

doi:10.1117/12.239869

6 May 1996 New interferometric method for measuring refractive index distribution in GRIN optical blanks

Ludmila A. Gerasimova, A. V. Fedorov

Proceedings Volume 2799, Atomic and Quantum Optics: High-Precision Measurements; (1996) https://doi.org/10.1117/12.239869
Event: International Conference on Coherent and Nonlinear Optics, 1995, St. Petersburg, Russian Federation

Abstract

A new interferometric method for control of refractive index distribution in a plane-parallel section cut from a gradient-index (GRIN) lens blank is described. It uses a standard double- pass interferometric scheme modified to provide single passing of the beam through the investigated GRIN sample. The two-dimensional dependence of refractive index in transverse dimensions along the sample surface is measured with the accuracy better than 1 multiplied by 10^-4.

Citation Download Citation

Ludmila A. Gerasimova and A. V. Fedorov "New interferometric method for measuring refractive index distribution in GRIN optical blanks", Proc. SPIE 2799, Atomic and Quantum Optics: High-Precision Measurements, (6 May 1996); https://doi.org/10.1117/12.239869

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