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Proceedings Paper

Theory And Method To Test Heterodyne Quantum Efficiency Distribution Function Of A HgCdTe Detector
Author(s): Li Ming
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Paper Abstract

The quantum efficiency distribution function of a detector has a direct influence on the performance and imaging quanlity of a CO2 laser heterodyne detection system. This paper gives out regularization theory to calculate the discrete point quantum efficiency of a detector and method which applies twice splines function to draft quantum efficiency distribution function. Two stablized-frequency CO2 laser and a singal processing system are used to test the quantum effiency distribution function of a photo-voltage HgCdTe detector. The result shows that the quantum efficiency in each point of the detector is uneven. The maximum is twice the minimum. Simple analysis is given to the cause of uneven distribution.

Paper Details

Date Published: 8 January 1990
PDF: 3 pages
Proc. SPIE 1157, Infrared Technology XV, (8 January 1990); doi: 10.1117/12.978605
Show Author Affiliations
Li Ming, Luo Yang Institute of Tracking and Telecommunication's Technology (China)


Published in SPIE Proceedings Vol. 1157:
Infrared Technology XV
Irving J. Spiro, Editor(s)

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