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

T. Baehr-Jones, M. Hochberg, Richard Soref, A. Scherer
2008 Journal of the Optical Society of America. B, Optical physics  
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
more » ... ence-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.
doi:10.1364/josab.25.000261 fatcat:whaxvrxu5nawnogmiyayncvely