Publications

Tunable THz detector based on a grating gated field-effect transistor

Shaner, Eric A.; Lee, Mark L.; Wanke, M.C.; Grine, A.D.; Reno, J.L.; Allen, S.J.

A split-grating-gate detector design has been implemented in an effort to combine the tunabiliry of the basic gratinggate detector with the high responsivity observed in these detectors when approaching the pinchoff regime. The redesign of the gates by itself offers several orders of magnitude improvement in resonant responsivity. Further improvements are gained by placing the detector element on a thermally isolating membrane in order to increase the effects of lattice heating on the device response.