Rugged far infrared bandpass filters

P. G. Huggard

doi:10.1117/12.2298610

30 August 1993 Rugged far infrared bandpass filters

P. G. Huggard

Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 21044Y (1993) https://doi.org/10.1117/12.2298610
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom

Abstract

Precision nickel printing screens are shown to be very useful as far infrared bandpass filters. For a range of such regularlyperforated screens, transmission maxima have been observed to lie at frequencies between 58 cm-1 and 142 cm-1. In general,the peak of transmission is measured to be over 0.9. It is found that this high transmission is little degraded by cascadingseveral screens, but the overall filter Q value may be increased from about 2 to a value of about 6.

Citation Download Citation

P. G. Huggard "Rugged far infrared bandpass filters", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21044Y (30 August 1993); https://doi.org/10.1117/12.2298610

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