Efficient ($\sim$10$\%$) Generation of Vacuum Ultraviolet Femtosecond Pulses via Four-Wave Mixing in Hollow-Core Fibers
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910389572206592 |
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| author | Forbes, Ruaridh Hockett, Paul Leterrier, Quentin Lausten, Rune |
| author_facet | Forbes, Ruaridh Hockett, Paul Leterrier, Quentin Lausten, Rune |
| contents | We report the generation of the 5th harmonic of Ti:sapphire, at 160 nm, with more than 4~$μ$J of pulse energy, and a pulse length of 37 fs with a 1 kHz repetition rate. The VUV pulses are produced using Four-Wave Difference Frequency Mixing (FWDFM) in a helium-filled stretched Hollow-Core Fiber (HCF), driven by a pump at 267 nm and seeded at 800 nm. Guided by simulations using Luna.jl, we are able to optimize the process carefully. The result is a conversion efficiency of $\sim$10$\%$ from the 267 nm pump beam, rivaling the efficient optical mixing schemes in nonlinear crystals. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2402_07056 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Efficient ($\sim$10$\%$) Generation of Vacuum Ultraviolet Femtosecond Pulses via Four-Wave Mixing in Hollow-Core Fibers Forbes, Ruaridh Hockett, Paul Leterrier, Quentin Lausten, Rune Optics We report the generation of the 5th harmonic of Ti:sapphire, at 160 nm, with more than 4~$μ$J of pulse energy, and a pulse length of 37 fs with a 1 kHz repetition rate. The VUV pulses are produced using Four-Wave Difference Frequency Mixing (FWDFM) in a helium-filled stretched Hollow-Core Fiber (HCF), driven by a pump at 267 nm and seeded at 800 nm. Guided by simulations using Luna.jl, we are able to optimize the process carefully. The result is a conversion efficiency of $\sim$10$\%$ from the 267 nm pump beam, rivaling the efficient optical mixing schemes in nonlinear crystals. |
| title | Efficient ($\sim$10$\%$) Generation of Vacuum Ultraviolet Femtosecond Pulses via Four-Wave Mixing in Hollow-Core Fibers |
| topic | Optics |
| url | https://arxiv.org/abs/2402.07056 |