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Published February 2008 | public
Journal Article Open

Design of a tunable, room temperature, continuous-wave terahertz source and detector using silicon waveguides

Abstract

We describe the design of a silicon-based source for radiation in the 0.5-14 THz regime. This new class of devices will permit continuously tunable, milliwatt scale, cw, room temperature operation, a substantial advance over currently available technologies. Our silicon terahertz generator consists of a silicon waveguide for near-infrared radiation, contained within a metal waveguide for terahertz radiation. A nonlinear polymer cladding permits two near-infrared lasers to mix, and through difference-frequency generation produces terahertz output. The small dimensions of the design greatly increase the optical fields, enhancing the nonlinear effect. The design can also be used to detect terahertz radiation.

Additional Information

© 2008 Optical Society of America. Received July 30, 2007; revised December 13, 2007; accepted December 28, 2007; posted January 7, 2008 (Doc. ID 85431); published January 30, 2008. This work was supported in part by the Air Force Office of Scientific Research (FA9550-04-1-0434) and DARPA (HR0011-04-1-0054).

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August 22, 2023
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