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Thin-film plate polarizer with Fabry-Perot filter design

: Kaiser, N.; Schallenberg, U.B.

France, C. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Developments in optical component coatings : Tagung 15-16 May 1996, Glasgow
Bellingham, Wash.: SPIE, 1996 (Europto series)
ISBN: 0-8194-2161-8
Conference "Developments in Optical Component Coatings" <1996, Glasgow>
Conference Paper
Fraunhofer IOF ()
Dünnschichtdesign; Dünnschichtpolarisator; Fabry-Perot interference filter; Fabry-Perot Interferenzfilter; thin film design; thin-film polarizer

A thin-film plate polarizer with a polarization ratio T/Ts> 1000 for single laser wavelengths can be realized if a Fabry-Perot filter is used. The spectral width of the polarization region of the filter polarizer is smaller than that of the usual long-wave pass filter, but there are not the practical difficulties of depositing multilayer systems with a large number of layers having nonquarter-wave thicknesses. For theoretical analysis, the principle of equivalent layer is extended to the Fabry-Perot design. Experimental results of the Fabry-Perot filter polarizer for different laser wavelengths, and with different coating materials, are presented.