Multispectral imaging chip using photonic crystals

Details Multispectral imaging chip using photonic crystals Multispectral imaging chip using photonic crystals

2006-12-05

2006-12-05

Allen, Stephone B. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C348S272000

Reexamination Certificate

active

07145124

ABSTRACT:
On-chip multispectral imaging and data management is provided in the form of an Adaptive Focal Plane Array (AFPA) that is capable of spectral tunability at the pixel level. Layers of photonic crystals are registered with pixels of a broadband focal plane array. Spectral tuning is accomplished by switching the photonic crystal layers on/off and/or by changing their material structure to tune their photonic band gaps and provide a passband for incident photons. The photonic crystal layers are preferably segmented to independently address different regions or “cells” of pixels down to a pixel-by-pixel resolution. The AFPA may simultaneously sense different regions of a scene at different spectral wavelengths, spatial resolutions and sensitivities.

REFERENCES:
patent: 2003/0063204 (2003-04-01), Suda
patent: 2005/0263675 (2005-12-01), Mouli
patent: 2006/0001869 (2006-01-01), Tuschel et al.
patent: 2006/0006485 (2006-01-01), Mouli

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