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

Autor: Imasaka Kotaro, Kaji Tomohiro, Shimura Tsutomu, Ashihara Satoshi
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: EPJ Web of Conferences, Vol 205, p 02024 (2019)
Druh dokumentu: article
ISSN: 2100-014X
DOI: 10.1051/epjconf/201920502024
Popis: 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.
Databáze: Directory of Open Access Journals