High-speed, Low-noise Thermoelectric Graphene Detectors At Terahertz Frequencies

Keynote (OPTO5)

Thu, 12 Nov 2020 12:00am to 12:30am

Room: Tesla

Attend in Zoom

We report room temperature terahertz detection in hBN/graphene/hBN heterostructures, integrated in top-gated field effect transistors. The record combination of high-speed (response time < 1 ns) and high sensitivity (noise equivalent power ~ 100 pWHz-1/2) is enabled by the photo-thermoelectric effect and paves the way for the design of ultrafast graphene arrays in the far infrared, opening concrete perspectives for targeting ultrafast applications.

Presenters and Authors Info

Presenter: Anonymous

Authors: Viti, Leonardo; Cadore, Alisson; Purdie, David; Muench, Jakob; Yang, Xinxin; Watanabe, Kenji; Taniguchi, Takashi; Vorobiev, Andrei; Stake, Jan; Lombardo, Antonio; Ferrari, Andrea; Vitiello, Miriam

1NEST, CNR-Istituto Nanoscienze and Scuola Normale Superiore, Cambridge Graphene Centre, University of Cambridge, Department of Microtechnology and Nanoscience, Chalmers University of Technology, National Institute for Materials Science