Progressive Self-Boosting Anapole-Enhanced Deep-Ultraviolet Third Harmonic during Few-Cycle Laser Radiation

Liping Shi*, Andrey B. Evlyukhin*, Carsten Reinhardt, Ihar Babushkin, Vladimir A. Zenin, Sven Burger, Radu Malureanu, Boris N. Chichkov, Uwe Morgner, Milutin Kovacev

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Nanoantennas made of high-index semiconductors with a strong nonlinearity and supported optical Mie-type resonances offer a promising alternative platform for nonlinear nanophotonics. In this Letter, we employ an array of amorphous silicon nanodisks with varying diameters to produce a broadband deep-ultraviolet third harmonic of a few-cycle Ti:sapphire oscillator. Ultrashort light pulses efficiently deposit their energy at the center of the disks where the electric field is strongly amplified by the anapole states. This leads to a progressive material modification in an extreme multishot (>1010 pulses) and a rather low fluence (
Original languageEnglish
JournalACS Photonics
Volume7
Issue number7
Pages (from-to)1655-1661
ISSN2330-4022
DOIs
Publication statusPublished - 2020

Fingerprint Dive into the research topics of 'Progressive Self-Boosting Anapole-Enhanced Deep-Ultraviolet Third Harmonic during Few-Cycle Laser Radiation'. Together they form a unique fingerprint.

Cite this