Related Experiment Video
Updated: Jun 17, 2026

Extraction and Purification of FAHD1 Protein from Swine Kidney and Mouse Liver
Published on: February 18, 2022
High performance blocking filters for the region 1 micro to 20 micro
1Electrical Engineering Department, Queen Mary College, University of London, London, England.
Abstract:
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 octave. Filters at 2.6 micro, 5.5 micro, and 12 micro which use a low-passing multilayer in combination with a semiconductor absorption edge are described in detail. The design of multilayers for optimum performance is discussed by analogy with the synthesis of electric circuit filters.
More Related Videos
Related Concept Videos
Passive Filters
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff frequency...
Filtration
Active Filters

