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Proceedings Paper

Graphene-based quantum hall effect infrared photodetectors
Author(s): Nikolai G. Kalugin; Lei Jing; Wenzhong Bao; Lee Wickey; Christopher Del Barga; Mekan Ovezmyradov; Eric A. Shaner; Chun Ning Lau
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Paper Abstract

Graphene is a promising material for optoelectronics and photonics. Recent experiments demonstrated graphene photodectectors based on interband transitions working at Mid and Near-IR/Visible regions. Extension of spectral range to longer wavelengths requires alternative photoresponse mechanisms. One of the mechanisms which has been proven to be efficient for THz detection in "classical" semiconductor materials is the optically-induced breakdown of quantum Hall effect. In our work we successfully demonstrated a graphene-based QHE photodetector. Our result demonstrates the potential of graphene as a material for Far-IR photodetectors. Further improvement in device design and use of more efficient radiation coupling solutions should enable graphene photodetectors with broader spectral range, higher sensitivity, and elevated operating temperatures for a variety of applications.

Paper Details

Date Published: 20 January 2012
PDF: 6 pages
Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 826836 (20 January 2012); doi: 10.1117/12.921485
Show Author Affiliations
Nikolai G. Kalugin, New Mexico Tech (United States)
Lei Jing, Univ. of California, Riverside (United States)
Wenzhong Bao, Univ. of California, Riverside (United States)
Lee Wickey, New Mexico Tech (United States)
Christopher Del Barga, New Mexico Tech (United States)
Mekan Ovezmyradov, New Mexico Tech (United States)
Eric A. Shaner, Sandia National Labs. (United States)
Chun Ning Lau, Univ. of California, Riverside (United States)

Published in SPIE Proceedings Vol. 8268:
Quantum Sensing and Nanophotonic Devices IX
Manijeh Razeghi; Eric Tournie; Gail J. Brown, Editor(s)

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