Antenna-enhanced high harmonic generation in a wide-bandgap semiconductor ZnO

Imasaka Kotaro; Kaji Tomohiro; Shimura Tsutomu; Ashihara Satoshi

doi:10.1051/epjconf/201920502024

EPJ Web of Conferences (Jan 2019)

Antenna-enhanced high harmonic generation in a wide-bandgap semiconductor ZnO

Imasaka Kotaro,
Kaji Tomohiro,
Shimura Tsutomu,
Ashihara Satoshi

Affiliations

Imasaka Kotaro: Institute of Industrial Science, The University of Tokyo
Kaji Tomohiro: Institute of Industrial Science, The University of Tokyo
Shimura Tsutomu: Institute of Industrial Science, The University of Tokyo
Ashihara Satoshi: Institute of Industrial Science, The University of Tokyo

DOI: https://doi.org/10.1051/epjconf/201920502024
Journal volume & issue: Vol. 205
p. 02024

Abstract

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We demonstrate high harmonic generation (HHG) into deep-UV range in a ZnO single crystal with resonant nanoantennas. Non-perturbative HHG is successfully induced by optical excitation of as low as 20 GW/cm2. The spectral selection rule is found to reflect crystal symmetry, suggesting the possibility of nano-scaled EUV sources and band-structure reconstruction.

Published in EPJ Web of Conferences

ISSN: 2100-014X (Online)
Publisher: EDP Sciences
Country of publisher: France
LCC subjects: Science: Physics
Website: http://www.epj-conferences.org/

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