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27 August 2010 Optically-electrically pumped THz source
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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.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bahareh Haji-Saeed, Jed Khoury, Walter Buchwald, Charles Woods, Sandra Wentzell, Brian Krejca, and John Kierstead "Optically-electrically pumped THz source", Proc. SPIE 7763, Terahertz Emitters, Receivers, and Applications, 776309 (27 August 2010); https://doi.org/10.1117/12.859704
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