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Journal Article

Highly efficient deep UV generation by four-wave mixing in gas-filled hollow-core photonic crystal fiber

MPS-Authors
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Belli,  Federico
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;
School of Engineering and Physical Sciences, Heriot-Watt University;

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Abdolvand,  Amir
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;
ASML, Netherlands B.V.;

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Travers,  John
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;
School of Engineering and Physical Sciences, Heriot-Watt University;

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Russell,  Philip
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;
Department of Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg;

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Citation

Belli, F., Abdolvand, A., Travers, J., & Russell, P. (2019). Highly efficient deep UV generation by four-wave mixing in gas-filled hollow-core photonic crystal fiber. Optics Letters, 44(22), 5509-5512. doi:10.1364/OL.44.005509.


Cite as: https://hdl.handle.net/21.11116/0000-0005-4476-A
Abstract
We report on a highly efficient experimental scheme for the generation of deep-ultraviolet (UV) ultrashort light pulses using four-wave mixing in gas-filled kagomé-style photonic crystal fiber. By pumping with ultrashort, few microjoule 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 UV 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 fibers can be scaled to high average powers and different spectral regions such as the vacuum UV (100–200 nm).