Accession Number:
ADB007291
Title:
Linear Detector Array
Descriptive Note:
Final rept. Apr 1972-Apr 1975
Corporate Author:
HONEYWELL RADIATION CENTER LEXINGTON MA
Personal Author(s):
Report Date:
1975-07-01
Pagination or Media Count:
107.0
Abstract:
Design, fabrication and test of a beam expander for a 250-watt C02 laser is described. A laser beam of circular cross section is expanded into a fan-shaped beam 5 milliradians by 1 milliradian. The design, fabrication and test of two five-channel receivers for use at 10.6 micrometers is described. A nonheterodyne five-channel receiver uses a linear array of five photoconductive Hg,CdTe detectors with wavelength detectivity of 2 x 10 to the 10th power cm square root of Hz per W. The preamplifier video bandwidths are 10 Hz to 1 MHz. A linear array of five photovoltaic Hg,CdTe detectors is used in the heterodyne five-channel receiver. The preamplifiers have i-f bandwidths of 7 MHz to 13 MHz and video bandwidths after the second detector of dc to 1 MHz.
Descriptors:
- *CARBON DIOXIDE LASERS
- *HETERODYNING
- *INFRARED DETECTORS
- *PHOTODIODES
- BEAM FORMING
- CADMIUM COMPOUNDS
- DOPPLER EFFECT
- FAR FIELD
- FAR INFRARED RADIATION
- INFRARED PHOTOCONDUCTORS
- INTERMEDIATE FREQUENCY AMPLIFIERS
- LINEAR ARRAYS
- MERCURY COMPOUNDS
- MIRRORS
- OPTICAL SCANNING
- PHOTOVOLTAIC EFFECT
- PREAMPLIFIERS
- TELLURIDES
Subject Categories:
- Lasers and Masers
- Infrared Detection and Detectors
- Optics
- Solid State Physics