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Journal of Nanophotonics

Spectrally selective infrared absorption in defect-mode photonic-crystal-slab cavity
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Paper Abstract

Significantly enhanced absorption at the defect mode can be obtained at surface-normal direction in a dielectric single-defect photonic-crystal-slab, with an absorption enhancement factor greater than 4,000. Complete absorption suppression within the photonic bandgap region can also be observed in defect-free photonic crystal cavities. High spectral selectivity and tunability is feasible with defect mode engineering, making photonic crystal defect cavities a promising nanophotonic platform for the spectrally selective infrared sensing and hyper-spectral imaging, with the incorporation of quantum well or quantum dot infrared photodetector heterostructures.

Paper Details

Date Published: 1 June 2007
PDF: 7 pages
J. Nanophoton. 1(1) 013515 doi: 10.1117/1.2759238
Published in: Journal of Nanophotonics Volume 1, Issue 1
Show Author Affiliations
Weidong Zhou, The Univ. of Texas at Arlington (United States)
Li Chen, The Univ. of Texas at Arlington (United States)
Zexuan Qiang, The Univ. of Texas at Arlington (United States)
Gail J. Brown, Air Force Research Lab. (United States)

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