Poster + Presentation + Paper
10 June 2024 High harmonic generation in solids driven by a high energy fiber laser source
Djamila Boukhaoui, Said Idlahcen, Jonathan Houard, Ivan Blum, Thomas Godin, Foued Amrani, Frédéric Gérôme, Fetah Benabid, David Gauthier, Willem Boutu, Hamed Merdji, Ammar Hideur, Angela Vella
Author Affiliations +
Conference Poster
Abstract
We present findings on High Harmonic Generation (HHG) in solids utilizing a high-energy fiber laser system operating at 1550 nm. The driving laser source comprises an Erbium-Doped Fiber chirped pulse Amplifier (EDFA) combined with a post-compression stage employing a hollow-core photonic crystal fiber (HC-PCF) filled with noble gases. Nonlinear self-compression in the HC-PCF enables the generation of ultrashort pulses with a duration of 50 fs and energy of 0.91 μJ at a repetition rate of 660 kHz. In a first step, harmonics up to H7 were observed when focusing the laser into small bandgap materials such as Zinc Oxide (ZnO). Subsequently, the system was enhanced to measure high harmonics in the extreme ultraviolet (XUV) range, with harmonics up to H25 observed using a large bandgap material, magnesium oxide (MgO). To the best of our knowledge, this represents the first solid-state HHG source driven by a high-energy few-cycle fiber laser in the telecom region.
Conference Presentation
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Djamila Boukhaoui, Said Idlahcen, Jonathan Houard, Ivan Blum, Thomas Godin, Foued Amrani, Frédéric Gérôme, Fetah Benabid, David Gauthier, Willem Boutu, Hamed Merdji, Ammar Hideur, and Angela Vella "High harmonic generation in solids driven by a high energy fiber laser source", Proc. SPIE 12992, Advances in Ultrafast Condensed Phase Physics IV, 1299208 (10 June 2024); https://doi.org/10.1117/12.3022412
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KEYWORDS
Fiber lasers

Solids

Harmonic generation

High harmonic generation

Crystals

Extreme ultraviolet

Zinc oxide

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