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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 2, Iss. 12 — Dec. 1, 1985
  • pp: 1913–1919

High-frequency rolloff in the response of junction detectors

David R. Haas, Theodore Yu, Jon G. Wurl, and T. K. Gustafson  »View Author Affiliations


JOSA B, Vol. 2, Issue 12, pp. 1913-1919 (1985)
http://dx.doi.org/10.1364/JOSAB.2.001913


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Abstract

A model is developed for junction detectors based on the antisymmetric electromagnetic-structure mode for two high-free-carrier-density regions separated by a slightly conductive barrier. The complex propagation constant is shown to increase as the 3/4 power of the frequency in a range defined by the ratio of the barrier conductivity to dielectric coefficient and by the free-carrier relaxation frequency and as the 1/4 power below this frequency range. This is shown to result in a decrease in the visible frequency heterodyne mixing response proportional to the 3/4 power of the intermediate frequency (2.3 dB per decade) from 100 GHz to a few terahertz. A linear inverse-frequency decrease in internal-junction quantum efficiency results for the same frequency range with a constant internal quantum efficiency below this.

© 1985 Optical Society of America

History
Original Manuscript: January 22, 1985
Manuscript Accepted: July 25, 1985
Published: December 1, 1985

Citation
David R. Haas, Theodore Yu, Jon G. Wurl, and T. K. Gustafson, "High-frequency rolloff in the response of junction detectors," J. Opt. Soc. Am. B 2, 1913-1919 (1985)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-2-12-1913

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