Highly Efficient Deep UV Generation by Four-Wave Mixing in Gas-Filled Hollow Core Photonic Crystal Fiber

Abstract

We report on a highly-efficient experimental scheme for the generation of deep-ultraviolet ultrashort light pulses using four-wave mixing in gas-filled kagomé-style photonic crystal fiber. By pumping with ultrashort, few $\mu$J, pulses centered at 400 nm, we generate an idler pulse at 266 nm, and amplify a seeded signal at 800 nm. We achieve remarkably high pump-to-idler energy conversion efficiencies of up to 38%. Although the pump and seed pulse durations are ~100 fs, the generated ultraviolet spectral bandwidths support sub-15 fs pulses. These can be further extended to support few-cycle pulses. Four-wave mixing in gas-filled hollow-core fibres can be scaled to high average powers and different spectral regions such as the vacuum ultraviolet (100-200 nm).

arXiv comment4 pages, 5 figures

References in corpus (5)

• Supercontinuum generation in the vacuum ultraviolet through dispersive-wave and soliton-plasma interaction in noble-gas-filled hollow-core photonic crystal fiber
• Generation of micro-J pulses in the deep UV at MHz repetition rates
• Angle-resolved photoemission spectroscopy with 9-eV photon-energy pulses generated in a gas-filled hollow-core photonic crystal fiber
• Control of ultrafast pulses in hydrogen-filled hollow-core photonic crystal fiber by Raman coherence
• Continuously wavelength-tunable high harmonic generation via soliton dynamics

Cited by in corpus (3)

• The LCLS-II Photoinjector Laser Infrastructure
• Generation of broadband circularly polarized deep-ultraviolet pulses in hollow capillary fibers
• Highly efficient DUV generation at 100 kHz via Yb pumped four-wave mixing in stretched hollow-core fibers