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Tschebysheff optical filter design

S Wu, J S Seeley

SPIE Proceedings, 652, Pages 57-63 (1986)


A method of designing multi-cavity infrared narrowband filters for bandwidth between 10% and 20% is presented: The method is based on a Tschebysheff prototype. The theoretical indices from these are simulated by Herpin equivalent layers, the outer layers may be also simulated by Herrmann's asymmetrical tri-layer. The new algorithm of filter design can easily be implemented in any microcomputer.