Optical efficiency of far-infrared photoconductors

Details Optical efficiency of far-infrared photoconductors Optical efficiency of far-infrared photoconductors

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apopt..25.4127w&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 25, Nov. 15, 1986, p. 4127-4134.

Physics

Optics

15

Far Infrared Radiation, Infrared Detectors, Optical Properties, Photoconductors, Optical Paths, Optimization, Photoabsorption

Scientific paper

The present optimization of the geometry of far-IR photoconductive detectors with diffraction-limited throughput, on the basis of experimental and theoretical results, gives attention to the internal optical path relative to measured absorption length, photoconductive gain, uniformity of illumination, cosmic ray cross section, and design compatibility with the requirements of one- and two-dimensional arrays. It is demonstrated that a rod-shaped, square cross section detector geometry, having lateral face electrodes and a beveled backface with which to trap the radiation by total internal reflection, exhibits responsivity commensurate with that of the best available detectors in integrating cavities.

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