Circularly Polarized DUV Pulses via Dispersive Wave Emission in Hollow Capillary Fibers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Circularly polarized ultra-short laser pulses in the deep ultraviolet region (DUV, 200-400 nm) are commonly obtained via a two-step process requiring frequency up-conversion in nonlinear crystals followed by polarization conversion using quarter-wave plates. Due to strong dispersion in bulk media, this method suffers from limitations in phase-matching bandwidth, phase compensation and achromatic birefringence. Here, we demonstrate a direct process for the generation of ultra-short, circularly polarized DUV pulses via soliton dynamics in gasfilled stretched hollow capillary fibers [1] , driven by circularly polarized pulses centered at 800 nm. Frequency up-conversion occurs via resonant dispersive wave (RDW) emission with inherent spectral tunability (here we demonstrate 223-377 nm) through control of the gas (Ar) pressure. Our technique overcomes the limitations inherent to crystal-based approaches and allows energy up-scaling and extension to the vacuum UV (100-200 nm) and other spectral regions while permitting ultra-short duration, because the polarization conversion is performed at 800 nm, where material dispersion is low and the quality of commercial phase retarders is high.

Original languageEnglish
Title of host publication2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
PublisherIEEE
ISBN (Electronic)9781665418768
DOIs
Publication statusPublished - 30 Sep 2021
Event2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference - Munich, Germany
Duration: 21 Jun 202125 Jun 2021

Conference

Conference2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
Abbreviated titleCLEO/Europe-EQEC 2021
Country/TerritoryGermany
CityMunich
Period21/06/2125/06/21

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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