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Type-II InAs/GaSb superlattices for dual color infrared detection
IRnova AB, Isafjordsgatan 22 C5, SE-16440 Kista, Sweden..
IRnova AB, Isafjordsgatan 22 C5, SE-16440 Kista, Sweden..
IRnova AB, Isafjordsgatan 22 C5, SE-16440 Kista, Sweden..
IRnova AB, Isafjordsgatan 22 C5, SE-16440 Kista, Sweden..
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2017 (English)In: QUANTUM SENSING AND NANO ELECTRONICS AND PHOTONICS XIV / [ed] Razeghi, M, SPIE-INT SOC OPTICAL ENGINEERING , 2017, article id UNSP 1011116Conference paper, Published paper (Refereed)
Abstract [en]

Midwave-midwave dual color detection has been successfully demonstrated by using pixel filters fabricated on top of InAs/GaSb focal plane arrays (FPAs). The pixel filters used in these FPAs were designed to transmit infrared radiation in the 3.5 - 4.1 mu m wavelength region and to completely block light shorter than 3.5 mu m. By comparing the signals of filtered and unfiltered pixels, excellent contrast between the two bands were obtained. This design concept offers a great flexibility to tailor the transmission window to any wavelength range within the 3-5 mu m wavelength region. In particular, this dual color detector concept has been used for gas detection of volatile organic compounds which have main absorption peaks at 3.3 mu m.

Place, publisher, year, edition, pages
SPIE-INT SOC OPTICAL ENGINEERING , 2017. article id UNSP 1011116
Series
Proceedings of SPIE, ISSN 0277-786X ; 10111
Keywords [en]
dual color, heterostructure, infrared, detector, superlattice, InAs/GaSb
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-271694DOI: 10.1117/12.2256514ISI: 000406804300029ISBN: 978-1-5106-0664-7 (print)OAI: oai:DiVA.org:kth-271694DiVA, id: diva2:1421611
Conference
Conference on Quantum Sensing and Nano Electronics and Photonics XIV, JAN 29-FEB 02, 2017, San Francisco, CA
Note

QC 20200403

Available from: 2020-04-03 Created: 2020-04-03 Last updated: 2020-04-03Bibliographically approved

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Gatty, Hithesh
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