Broadband Characteristics of Ultrahigh Responsivity of Asymmetric Dual-Grating-Gate Plasmonic Terahertz Detectors
Résumé
We report on the intrinsic responsivity of an asymmetric dual-grating-gate plasmonic detector over 100 kV/W at 200 GHz and 50 kV/W at 300 GHz measured at room temperature with zero source-drain bias. We demonstrate that broadband characteristics of the responsivity depend much on the geometrical parameters of the detectors.