Characterization of the Optical Properties of an Infrared Blocked Impurity Band Detector

Published

August 20, 2011

Author(s)

Solomon I. Woods, Simon G. Kaplan, Timothy M. Jung, Adriaan C. Carter

Abstract

Si:As blocked impurity band detectors have been partially deprocessed and measured by Fourier transform spectroscopy to determine their transmittance and reflectance at cryogenic temperatures over the wavelength range 2 µm to 40 µm. The effective propagation constants for the active layer were derived from the transmittance and reflectance values, and estimates were calculated for the absorptance (quantum efficiency) of the detector and the absorption cross section of the Si:As. The maximum quantum efficiency exhibits good agreement with that determined by photocurrent measurements on similar detectors and indicates that the methods outlined could be used to predict the performance of such detectors from optical measurements of the blanket films from which they are to be fabricated.

Citation

Applied Optics

Volume

50

Pub Type

Journals

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Keywords

BIB detector, blocked impurity band detector, Fourier transform spectrometer, infrared detector, quantum efficiency, Si:As

Citation

Woods, S. , Kaplan, S. , Jung, T. and Carter, A. (2011), Characterization of the Optical Properties of an Infrared Blocked Impurity Band Detector, Applied Optics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=907782 (Accessed October 10, 2025)