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Conferences > CLEO_SI > 2014 > SW1F > SW1F.2

Extreme Terahertz Nonlinearities in Undoped GaAs Driven by Ultrahigh Near-Fields in Metamaterials

C. Lange, T. Maag, M. Hohenleutner, S. Baierl, E. Edwards, D. Bougeard, G. Woltersdorf, and R. Huber

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Abstract

Local terahertz fields of multiple 10 MV/cm tailored in gold metamaterials drive electronic interband transitions in intrinsic GaAs. The bandgap exceeds the THz photon energy 400-fold. Photoluminescence microscopy maps the THz near-field distribution.

© 2014 Optical Society of America

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