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arXiv · 1203.3983

Graphene-based voltage-tunable coherent terahertz emitter

S. A. Mikhailov
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Abstract

A portion of the electromagnetic wave spectrum between $\sim 0.1$ and $\sim 10$ terahertz (THz) suffers from the lack of powerful, effective, easy-to-use and inexpensive emitters, detectors and mixers. We propose a multilayer graphene -- boron-nitride heterostructure which is able to emit radiation in the frequency range $\sim 0.1-30$ THz with the power density up to $\sim 0.5$ W/cm$^2$ at room temperature. The proposed device is extremely thin, light, flexible, almost invisible and may completely cover the needs of science and technology in the sources of terahertz radiation.

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S. A. Mikhailov. 2012-03-18. Graphene-based voltage-tunable coherent terahertz emitter. https://doi.org/10.1103/physrevb.87.115405

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