Volume 79, Number 2, July 2007
|Number of page(s)||4|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||28 June 2007|
Non-linear electromagnetic response of graphene
Institute for Physics, University of Augsburg - D-86135 Augsburg, Germany
Accepted: 4 June 2007
It is shown that the massless energy spectrum of electrons and holes in graphene leads to the strongly non-linear electromagnetic response of this system. We predict that the graphene layer, irradiated by electromagnetic waves, emits radiation at higher frequency harmonics and can work as a frequency multiplier. The operating frequency of the graphene frequency multiplier can lie in a broad range from microwaves to the infrared.
PACS: 73.50.Fq – High-field and nonlinear effects / 81.05.Uw – Carbon, diamond, graphite / 78.67.-n – Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
© Europhysics Letters Association, 2007
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