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Appl Opt. 1973 Sep 1;12(9):2071-4. doi: 10.1364/AO.12.002071.

Two-wavelength interferometry.

Abstract

Previous methods of two-wavelength variable-sensitivity interferometry are reviewed and a simplified two-wavelength technique for interferometric testing under static conditions is discussed. An extension of the static technique to real-time dynamic testing is proposed and an operational variable-sensitivity interferometer utilizing the real-time technique is described.

PMID:
20125670

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