BANDWIDTH EXTENSION FOR IR DETECTORS THROUGH SPATIAL-FREQUENCY SHIFTING

Authors
LETTINGTON AH HONG QH TZIMOPOULOU S
Citation
Ah. Lettington et al., BANDWIDTH EXTENSION FOR IR DETECTORS THROUGH SPATIAL-FREQUENCY SHIFTING, Applied optics, 35(26), 1996, pp. 5258-5266
Citations number
12
Categorie Soggetti
Optics
Journal title
Applied optics → ACNP
ISSN journal
00036935
Volume
35
Issue
26
Year of publication
1996
Pages
5258 - 5266
Database
ISI
SICI code
0003-6935(1996)35:26<5258:BEFIDT>2.0.ZU;2-W
Abstract
We describe a new scheme for extending the bandwidth of IR detectors b y the employment of a reticle that shifts the higher spatial-frequency content of the scene onto the lower-frequency region. Then all the sp atial-frequency information can pass through the bandwidth of the dete ctor system, so that a high-resolution image may be reconstructed from a series of pictures obtained with the reticle in a number of predete rmined positions. (C) 1996 Optical Society of America