Bow-Tie Plasmonic Arrays Loaded with Graphene for the Fast Room Temperature Detection of Terahertz Quantum Cascade Lasers

Riccardo Degl'Innocenti ; Long Xiao ; David Jessop ; Stephen Kindness ; Christian W. Sol ; Yuan Ren ; Hungyen Lin ; Axel J. Zeitler ; Philipp Braeuninger-Weimer ; Stephan Hofmann ; Harvey Beere ; David Ritchie

Abstract:

We present a fast room temperature terahertz detector based on interdigitated bow-tie antennas asymmetrically doping and contacting graphene. The device was tested with a 2 THz quantum cascade laser yielding a responsivity of 0.5 μAW^-1.

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