Imaging system including an array of dual-band microbridge detec

Details Imaging system including an array of dual-band microbridge detec Imaging system including an array of dual-band microbridge detec

1998-07-20

2000-12-05

Garber, Wendy

Television

Camera, system and detail

Camera connected to computer

348216, 2503384, H04N 5225

Patent

active

06157404&

ABSTRACT:
A dual-band detector that absorbs incident radiation in a first range of wavelengths and that absorbs incident radiation in a second range of wavelengths. The dual-band detector includes a semiconductor substrate and a first microbridge detector level disposed above the semiconductor substrate. The first microbridge detector level includes an active area that absorbs incident radiation in one of the first range of wavelengths and the second range of wavelengths. In one embodiment, the semiconductor substrate includes a detector that detects incident radiation in the other of the first and second range of wavelengths. In another embodiment, the dual-band microbridge detector also includes a second microbridge detector level. The second microbridge detector level also includes an active area that absorbs incident radiation in an alternative one of the first range of wavelengths and the second range or wavelengths. With this apparatus, the dual-band detector can operate in a first range of wavelengths and also in a second range of wavelengths. In addition, this apparatus can be fabricated using existing processing techniques.

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