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Optical and Quantum Electronics

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01-08-2019

Aperiodic graphene ribbons in MOSFET topology for multi-wavelength terahertz generation

Authors: Kiyanoush Goudarzi, Samiye Matloub, Ali Rostami

Published in: Optical and Quantum Electronics | Issue 8/2019

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Abstract

This paper proposes and simulates multi-wavelength terahertz wave generation using MOSFET with aperiodic gate structure. This emitter works at room temperature and spans the whole terahertz spectra. Structure of the emitter is like a MOSFET for which the channel and gate respectively consist of periodic and aperiodic graphene ribbons. By applying a DC voltage to the source and drain contacts, a DC current flows through the periodic channel. Then by applying a gate voltage to aperiodic graphene ribbons, the current is modulated with aperiodic graphene potential of the gate. The gate voltage applies aperiodic potential U(x) to channel’s electrons that subsequently modulates current of the periodic channel. The modulated current radiates coherent electromagnetic waves. By tuning parameters of the emitter, the radiated coherent electromagnetic wave is in THz range.

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Title: Aperiodic graphene ribbons in MOSFET topology for multi-wavelength terahertz generation
Authors: Kiyanoush Goudarzi
Samiye Matloub
Ali Rostami
Publication date: 01-08-2019
Publisher: Springer US
Published in: Optical and Quantum Electronics / Issue 8/2019
Print ISSN: 0306-8919
Electronic ISSN: 1572-817X
DOI: https://doi.org/10.1007/s11082-019-1971-0

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