A bandpass filter of the double-halfwave design has been developed for use in submillimeter astronomy. The filter is rugged, easily tunable, easy to construct, and cryogenically coolable without loss of performance. Its bandpass character is superior to the single Fabry-Perot.
© 1984 Optical Society of America
Mark Dragovan, "Cryogenic metal mesh bandpass filters for submillimeter astronomy," Appl. Opt. 23, 2798-2802 (1984)