Multiplexer For Scattering Measurements

J. M. Dowling; D. E. Masturzo; M. E. Whitson

doi:10.1117/12.934146

5 April 1983 Multiplexer For Scattering Measurements

J. M. Dowling, D. E. Masturzo, M. E. Whitson

Proceedings Volume 0362, Scattering in Optical Materials II; (1983) https://doi.org/10.1117/12.934146
Event: 26th Annual Technical Symposium, 1982, San Diego, United States

Abstract

Let the wavefront normal (ray) entering a Michelson interferometer make an angle with respect to the perpendiculars to the movable and stationary mirrors of the interferometer. If the movable mirror is displaced along its perpendicular a geometrical distance x, an optical path difference of 2 x cosθ will be generated. A monochromatic line of wavenumber νθ will then be modulated as if it had a wavenumber νθcosθ. When used in this fashion, the interferometer codes the angular data into wavenumber data. Multiplexing for many types of scattering measurements is thus possible. An apparatus to accomplish these measurements is described, and results for a mirror contaminated with a single spherical particle are presented.

Citation Download Citation

J. M. Dowling, D. E. Masturzo, and M. E. Whitson "Multiplexer For Scattering Measurements", Proc. SPIE 0362, Scattering in Optical Materials II, (5 April 1983); https://doi.org/10.1117/12.934146

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