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Graphene plasmonics

Ultra-tunable graphene light source

Nature Photonics volume 10, pages 3–4 (2016)Cite this article

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Compact monochromatic X-ray sources based on graphene plasmons may soon become a reality.

Free-electron-based light sources have long attracted interest due to their continuous tunability that has been demonstrated to extend across the electromagnetic spectrum from millimetre waves and microwaves through the infrared and visible to ultraviolet and X-ray regions. However this intrinsic tunability, particularly at short wavelengths, usually involves sources that are large and costly. The prospect of a compact, continuously tunable light source with the capability to generate short-wavelength ultraviolet and even X-ray light is an exciting one for many scientific, medical and engineering applications.

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Figure 1: Generation of tunable radiation in graphene.

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Authors and Affiliations

  1. Gordon Robb is in the Department of Physics, University of Strathclyde, John Anderson Building, 107 Rottenrow, Glasgow G4 0NG, Scotland, UK,

    Gordon Robb

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  1. Gordon Robb
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Correspondence to Gordon Robb.

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Robb, G. Ultra-tunable graphene light source. Nature Photon 10, 3–4 (2016). https://doi.org/10.1038/nphoton.2015.256

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  • DOI: https://doi.org/10.1038/nphoton.2015.256

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