Ultrafast circularly polarized pulses tunable from the vacuum to deep ultraviolet

Research output: Contribution to journalArticlepeer-review

Abstract

We experimentally demonstrate the efficient generation of circularly polarized pulses tunable from the vacuum to deep ultraviolet (160–380 nm) through resonant dispersive wave emission from optical solitons in a gas-filled hollow capillary fiber. In the deep ultraviolet, we measure up to 13 µJ of pulse energy, and from numerical simulations, we estimate the shortest output pulse duration to be 8.5 fs. We also experimentally verify that simply scaling the pulse energy by 3/2 between linearly and circularly polarized pumping closely reproduces the soliton and dispersive wave dynamics. Based on previous results with linearly polarized self-compression and resonant dispersive wave emission, we expect our technique to be extended to produce circularly polarized few-fs pulses further into the vacuum ultraviolet, and few to sub-fs circularly polarized pulses in the near infrared.
Original languageEnglish
Pages (from-to)4057-4060
Number of pages4
JournalOptics Letters
Volume46
Issue number16
Early online date20 Jul 2021
DOIs
Publication statusPublished - 15 Aug 2021

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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