DETECTOR OF MODULATED TERAHERTZ RADIATION BASED ON GRAPHENE NANORIBBONS

Yury V. Stebunov ¹, Vladimir G. Leiman ¹, Aleksey V. Arsenin ¹,  Vyacheslav L. Semenenko ¹, Victor I. Ryzhii ²

¹ Moscow Institute of Physics and Technology (State University)

² Tohoku University, Sendai, Japan

 

Received June 12, 2012
 

Abstract. We proposed a novel scheme of the detector of terahertz radiation modulated by megahertz or gigahertz signals. Detector model is based on the nanomechanical resonator with the sufficiently narrow graphene nanoribbon as a mechanically moving part. Motion of a nanoribbon is supported by the electromagnetic ponderomotive force appearing due to the plasmon resonance exited in the system. Using developed model we obtained that the proposed demodulator has a number of advantages such as higher output signal and higher modulation frequency of incoming radiation in comparison with the previously proposed demodulators of terahertz radiation.

Keywords: graphene nanoribbon, carbon nanotube, terahertz radiation, plasmon resonator, demodulator, detector.