You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
26 April 2010Grating THz laser with optical pumping
In this paper, we present a design for a widely tunable solid-state optically and electrically pumped THz laser based on
the Smith-Purcell free-electron laser. In the free-electron laser, an energetic electron beam pumps a metallic grating to
generate surface plasmons. Our solid-state optically pumped design consists of a thin layer of dielectic, such as SiNx,
sandwiched between a corrugated structure and a thin metal or semiconductor layer. The lower layer is for current
streaming, and replaces the electron beam in the original design. The upper layer consists of one micro-grating for
coupling the electromagnetic field in, another for coupling out, and a nano-grating for coupling with the current in the
lower layer for electromagnetic field generation. The surface plasmon waves generated from the upper layer by an
external electromagnetic field, and the lower layer by the applied current, are coupled. Emission enhancement occurs when the plasmonic waves in both layers are resonantly coupled.
The alert did not successfully save. Please try again later.
Jed Khoury, Bahareh Haji-saeed, Charles Woods, John Kierstead, "Grating THz laser with optical pumping," Proc. SPIE 7671, Terahertz Physics, Devices, and Systems IV: Advanced Applications in Industry and Defense, 76710Q (26 April 2010); https://doi.org/10.1117/12.849445