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Proceedings Paper

Optically-electrically pumped THz source
Author(s): Bahareh Haji-Saeed; Jed Khoury; Walter Buchwald; Charles Woods; Sandra Wentzell; Brian Krejca; John Kierstead
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Paper Abstract

In this paper, we propose a design for a widely tunable solid-state optically and electrically pumped THz source based on the Smith-Purcell free-electron laser. Our design consists of a thin dielectric layer sandwiched between an upper corrugated structure and a lower layer of thin metal, semiconductor, or high electron mobility material. The lower layer is for current streaming, which replaces the electron beam in the Smith-Purcell free-electron laser design. The upper layer consists of two micro-gratings for optical pumping, and a nano-grating to couple with electrical pumping in the lower layer. The optically generated surface plasmon waves from the upper layer and the electrically induced surface plasmon waves from the lower layer are then coupled. Emission enhancement occurs when the plasmonic waves in both layers are resonantly coupled.

Paper Details

Date Published: 27 August 2010
PDF: 14 pages
Proc. SPIE 7763, Terahertz Emitters, Receivers, and Applications, 776309 (27 August 2010); doi: 10.1117/12.859704
Show Author Affiliations
Bahareh Haji-Saeed, Air Force Research Lab. (United States)
Jed Khoury, Air Force Research Lab. (United States)
Walter Buchwald, Air Force Research Lab. (United States)
Charles Woods, Air Force Research Lab. (United States)
Sandra Wentzell, Solid State Scientific Corp. (United States)
Brian Krejca, Solid State Scientific Corp. (United States)
John Kierstead, Solid State Scientific Corp. (United States)

Published in SPIE Proceedings Vol. 7763:
Terahertz Emitters, Receivers, and Applications
Jean-François Lampin; Didier J. Decoster; Manijeh Razeghi, Editor(s)

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