Generation of broadband circularly polarized deep-ultraviolet pulses in hollow capillary fibers

Research output: Contribution to journalArticle

Abstract

We demonstrate an efficient scheme for the generation of broadband, high-energy, circularly polarized femtosecond laser pulses in the deep ultraviolet through seeded degenerate four-wave mixing in stretched gas-filled hollow capillary fibers. Pumping and seeding with circularly polarized 35 fs pulses centered at 400 nm and 800 nm, respectively, we generate idler pulses centered at 266 nm with 27 µJ of energy and over 95% spectrally averaged ellipticity. Even higher idler energies and broad spectra (27 nm bandwidth) can be obtained at the cost of reduced ellipticity. Our system can be scaled in average power and used in different spectral regions, including the vacuum ultraviolet.

Original languageEnglish
Pages (from-to)5648-5651
Number of pages4
JournalOptics Letters
Volume45
Issue number20
Early online date7 Oct 2020
DOIs
Publication statusPublished - 15 Oct 2020

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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