Proceedings of SPIE
The design optimization of the detector-preamplifier subsystem is critical to the achievement of sensitive infrared spectrometers. The application illustrated is for cryogenically- cooled detectors, but the optimal approach based upon an operational preamplifier is general for detector operation under background limited conditions.
Frodsham, D. Gary and Baker, Doran J., "Optimization of Detector-Preamplifier for Cryogenic Spectrometry" (1979). Space Dynamics Lab Publications. Paper 48.