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Active and passive infrared imager based on short-wave and mid-wave type-II superlattice dual-band detectors |
Optics Letters, Vol. 38, Issue 1, pp. 22-24 (2013)
http://dx.doi.org/10.1364/OL.38.000022
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Abstract
A versatile dual-band detector capable of active and passive use is demonstrated using short-wave (SW) and mid-wave (MW) IR type-II superlattice photodiodes. A bilayer etch-stop scheme is introduced for back-side-illuminated detectors, which enhanced the external quantum efficiency both in the SWIR and MWIR spectral regions. Temperature-dependent dark current measurements of pixel-sized 27 μm detectors found the dark current density to be ~1 × 10-5 A/cm2 for the
© 2012 Optical Society of America
OCIS Codes
(040.2480) Detectors : FLIR, forward-looking infrared
(040.5160) Detectors : Photodetectors
(110.3080) Imaging systems : Infrared imaging
(230.0250) Optical devices : Optoelectronics
ToC Category:
Detectors
History
Original Manuscript: October 30, 2012
Revised Manuscript: November 30, 2012
Manuscript Accepted: November 30, 2012
Published: December 20, 2012
Virtual Issues
March 26, 2013 Spotlight on Optics
Citation
Edward Kwei-wei Huang, Abbas Haddadi, Guanxi Chen, Anh-Minh Hoang, and Manijeh Razeghi, "Active and passive infrared imager based on short-wave and mid-wave type-II superlattice dual-band detectors," Opt. Lett. 38, 22-24 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-1-22
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