Cavity-enhanced multispectral photodetector using phase-tuned propagation: theory and design
Optics Letters, Vol. 35, Issue 5, pp. 742-744 (2010)
http://dx.doi.org/10.1364/OL.35.000742
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Abstract
We propose and theoretically analyze what we believe to be a novel design of cavity-enhanced photodetectors capable of sensing multiple wavelengths simultaneously in a single pixel. The design is based on phase-tuned propagation of resonant modes in cascaded planar resonant cavities. We show that this concept can be generalized to detect multiple wavelength combinations covering the entire near to far infrared spectrum. Besides its multispectral detection capability, the design also features minimal spectral cross talk and significantly suppressed noise. The intrinsic design versatility and scalability, as well as process compatibility with planar microfabrication, suggest the design’s wide application potential for telecommunications, infrared imaging, and biochemical sensing.
© 2010 Optical Society of America
OCIS Codes
(040.3060) Detectors : Infrared
(040.5160) Detectors : Photodetectors
(110.4234) Imaging systems : Multispectral and hyperspectral imaging
(310.6805) Thin films : Theory and design
ToC Category:
Detectors
History
Original Manuscript: October 5, 2009
Revised Manuscript: November 14, 2009
Manuscript Accepted: January 7, 2010
Published: February 26, 2010
Virtual Issues
Vol. 5, Iss. 6 Virtual Journal for Biomedical Optics
Citation
Jianfei Wang, Juejun Hu, Xiaochen Sun, Anu Agarwal, and Lionel C. Kimerling, "Cavity-enhanced multispectral photodetector using phase-tuned propagation: theory and design," Opt. Lett. 35, 742-744 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-35-5-742
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