High harmonic generation in Solids driven by 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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationAdvances in Ultrafast Condensed Phase Physics IV
EditorsStefan Haacke
PublisherSPIE
ISBN (Electronic)9781510673021
DOIs
Publication statusPublished - 1 Jan 2024
EventAdvances in Ultrafast Condensed Phase Physics IV 2024 - Strasbourg, France
Duration: 9 Apr 202411 Apr 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12992
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceAdvances in Ultrafast Condensed Phase Physics IV 2024
Country/TerritoryFrance
CityStrasbourg
Period9/04/2411/04/24

Keywords

  • High harmonic generation
  • fiber laser
  • hollow core fibers
  • pulse self-compression

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