High performance blocking filters for the region 1 micro to 20 micro.


A set of filters based on the sequence of semiconductor edges is described which offers continuity of short-wave infrared blocking. The rejection throughout the stop region is greater than 10(3) for each filter and the transmission better than 70% through one octave with a square cutoff. The cutoff points are located at intervals of about two-thirds of an… (More)
DOI: 10.1364/AO.5.000081