Share Email Print

Optical Engineering

Infrared Detectors: An Overview
Author(s): R. B. Emmons; S. R. Hawkins; K. F. Cuff
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Infrared detectors are discussed in terms of an equivalent circuit consisting of a photocurrent generator in series with a gain mechanism, both shunted by the detector internal impedance. Detectivity, the usual measure of infrared detector sensitivity, is defined in terms of the parameters of this equivalent circuit. The properties and performance of the most common and best developed infrared sensitive photoconductors and photodiodes are then described in terms of these parameters. Both normal and low background performance are considered, with emphasis on maximum sensitivity in the low-to-moderate frequency region. Short discussions of the current status and recent developments in thermal detectors, high-speed detectors, and infrared detector arrays are included. The importance of preamplification is stressed throughout, and preamplifier principles and current practice for the various types of detector are separately discussed.

Paper Details

Date Published: 1 February 1975
PDF: 10 pages
Opt. Eng. 14(1) 140121 doi: 10.1117/12.7971760
Published in: Optical Engineering Volume 14, Issue 1
Show Author Affiliations
R. B. Emmons, Lockheed Missiles & Space Company, Inc. (United States)
S. R. Hawkins, Lockheed Missiles & Space Company, Inc. (United States)
K. F. Cuff, Lockheed Missiles & Space Company, Inc. (United States)

© SPIE. Terms of Use
Back to Top