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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 11 — Oct. 31, 2012

Photoluminescence and photoresponse from InSb/InAs-based quantum dot structures

Oscar Gustafsson, Amir Karim, Jesper Berggren, Qin Wang, Carl Reuterskiöld-Hedlund, Christopher Ernerheim-Jokumsen, Markus Soldemo, Jonas Weissenrieder, Sirpa Persson, Susanne Almqvist, Ulf Ekenberg, Bertrand Noharet, Carl Asplund, Mats Göthelid, Jan Y. Andersson, and Mattias Hammar  »View Author Affiliations

Optics Express, Vol. 20, Issue 19, pp. 21264-21271 (2012)

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InSb-based quantum dots grown by metal-organic vapor-phase epitaxy (MOVPE) on InAs substrates are studied for use as the active material in interband photon detectors. Long-wavelength infrared (LWIR) photoluminescence is demonstrated with peak emission at 8.5 µm and photoresponse, interpreted to originate from type-II interband transitions in a p-i-n photodiode, was measured up to 6 µm, both at 80 K. The possibilities and benefits of operation in the LWIR range (8-12 µm) are discussed and the results suggest that InSb-based quantum dot structures can be suitable candidates for photon detection in the LWIR regime.

© 2012 OSA

OCIS Codes
(040.3060) Detectors : Infrared
(160.1890) Materials : Detector materials
(230.5160) Optical devices : Photodetectors
(230.5590) Optical devices : Quantum-well, -wire and -dot devices
(250.0250) Optoelectronics : Optoelectronics

ToC Category:

Original Manuscript: June 4, 2012
Revised Manuscript: August 5, 2012
Manuscript Accepted: August 27, 2012
Published: September 4, 2012

Virtual Issues
Vol. 7, Iss. 11 Virtual Journal for Biomedical Optics

Oscar Gustafsson, Amir Karim, Jesper Berggren, Qin Wang, Carl Reuterskiöld-Hedlund, Christopher Ernerheim-Jokumsen, Markus Soldemo, Jonas Weissenrieder, Sirpa Persson, Susanne Almqvist, Ulf Ekenberg, Bertrand Noharet, Carl Asplund, Mats Göthelid, Jan Y. Andersson, and Mattias Hammar, "Photoluminescence and photoresponse from InSb/InAs-based quantum dot structures," Opt. Express 20, 21264-21271 (2012)

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