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Proceedings Paper

Can any design support an effective nanostructure lasing for a few THz?
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Paper Abstract

We present here a bird eye view on the basic physical factors limiting the efficiency of nanostructure-based THz lasing. The origin of these limitations is the contradiction between the requirements of THz gaps, high radiative matrix element value, and selective depopulation. Various ways were suggested to go out of these limitations. They include: sophisticated nanostructure layout, the usage of QCLs, and switch to bipolar THz lasing. We present the results of detailed density matrix based calculations comparing these approaches. In theory InAs-GaSb bipolar THz lasers are the most promising.

Paper Details

Date Published: 6 February 2008
PDF: 13 pages
Proc. SPIE 6893, Terahertz Technology and Applications, 689304 (6 February 2008); doi: 10.1117/12.762282
Show Author Affiliations
L. D. Shvartsman, The Hebrew Univ. of Jerusalem (Israel)
B. Laikhtman, The Hebrew Univ. of Jerusalem (Israel)

Published in SPIE Proceedings Vol. 6893:
Terahertz Technology and Applications
Kurt J. Linden; Laurence P. Sadwick, Editor(s)

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