Integrated IR and visible detector
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United States of America Patent
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Dec 13, 1994
Grant Date -
N/A
app pub date -
Jan 12, 1993
filing date -
Jan 12, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A radiation detector (1) includes a multi-layered substrate (2,10) having a first major surface, which is a radiation receiving surface, and a second major surface disposed opposite to the first major surface. A first detector is formed adjacent to the first major surface, the first detector being responsive to a wavelength or wavelengths of electromagnetic radiation in the range of approximately 0.3 micrometers (near-UV) to approximately 1.2 micrometers (near-IR). A second detector is formed adjacent to the second major surface of the multi-layered substrate, the second detector being responsive to a wavelength or wavelengths of electromagnetic radiation in the range of approximately one micrometer to approximately twenty micrometers (SWIR to VLWIR). In a presently preferred embodiment the second detector is simultaneously responsive to IR radiation within two distinct spectral bands.
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