Surface plasmon enhanced IR absorption: Design and experiment

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DOIResolve DOI: http://doi.org/10.1016/j.photonics.2010.12.002
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TypeArticle
Journal titlePhotonics and Nanostructures - Fundamentals and Applications
ISSN1569-4410
Volume9
Issue1
Pages95100; # of pages: 6
SubjectAbsorption peaks; Corrugated surfaces; Design and optimization; Experimental investigations; Free carrier absorption; GaAs-based structures; Heterojunction interfacial workfunction internal photoemission; IR absorption; IR detector; Metal interactions; Optical absorption; Responsivity; Surface Plasmon; Surface plasmon excitation; Surface plasmons; Corrugated metal; Detectors; Heterojunctions; Infrared absorption; Light absorption; Metals; Optoelectronic devices; Photodetectors; Plasmons; Absorption
AbstractMetal corrugated surfaces have the potential of enhancing optical absorption through surface plasmon (SP) excitation facilitated by light-metal interactions. The successful utilization of metal corrugation induced optical absorption can improve the response of free carrier absorption (FCA), based HEterojunction Interfacial Workfunction Internal Photoemission (HEIWIP) detectors. This article reports theoretical and experimental investigations of SP-induced infrared (IR) absorption in GaAs based structures, exhibiting absorption peak wavelength (λ p) in the 10-14 μm region. Moreover, substantial absorption and responsivity improvement using metallic corrugation on typical heterojunction detector is predicted. Proposed design and optimization approaches will be useful for improving the performance of IR detectors. © 2011 Elsevier B.V. All rights reserved.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21271756
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Record identifier8dee7831-e2c9-4ef6-81ad-16b7a8487cd0
Record created2014-03-24
Record modified2016-05-09
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