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Proceedings Paper

Resonant bolometric subterahertz detection in a 2D plasmonic cavity
Author(s): G. C. Dyer; G. R. Aizin; A. D. Grine; J. L. Reno; J. M. Hensley; S. J. Allen; E. A. Shaner
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Paper Abstract

The two-dimensional plasma resonance excited in the channel of a field effect transistor has recently been utilized as the frequency-selective absorber in a monolithic far infrared plasmonic cavity detector. In this article we discuss the relevant parameters pertaining to engineering the plasmonic cavity and an integrated detection element as constituent elements of a resonant far infrared detector. The spectra of low-order plasmon modes in 18 μm and 34 μm long two-dimensional plasmonic cavities with 4 μm period grating gates have been measured. When the length of the plasma cavity is significantly larger than the gate length or period, the cavity length rather than grating period defines the plasmon wavevector. Electronic noise sources are considered; random telegraph noise is suggested as a dominant noise source when the device is operated as a highly resistive bolometric detector.

Paper Details

Date Published: 9 May 2012
PDF: 8 pages
Proc. SPIE 8363, Terahertz Physics, Devices, and Systems VI: Advanced Applications in Industry and Defense, 83630T (9 May 2012); doi: 10.1117/12.919216
Show Author Affiliations
G. C. Dyer, Sandia National Labs. (United States)
G. R. Aizin, Kingsborough Community College (United States)
A. D. Grine, Sandia National Labs. (United States)
J. L. Reno, Sandia National Labs. (United States)
J. M. Hensley, Physical Sciences Inc. (United States)
S. J. Allen, Univ. of California, Santa Barbara (United States)
E. A. Shaner, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 8363:
Terahertz Physics, Devices, and Systems VI: Advanced Applications in Industry and Defense
A. F. Mehdi Anwar; Nibir K. Dhar; Thomas W. Crowe, Editor(s)

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