30 August 1993 Rugged far infrared bandpass filters
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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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P. G. Huggard, "Rugged far infrared bandpass filters", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21044Y (30 August 1993); doi: 10.1117/12.2298610; https://doi.org/10.1117/12.2298610
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