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Journal Article

UV Soliton Dynamics and Raman-Enhanced Supercontinuum Generation in Photonic Crystal Fiber

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Hosseini,  Pooria
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Ermolov,  Alexey
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Tani,  Francesco
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Novoa,  David
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201171

Russell,  Philip
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Hosseini, P., Ermolov, A., Tani, F., Novoa, D., & Russell, P. (2018). UV Soliton Dynamics and Raman-Enhanced Supercontinuum Generation in Photonic Crystal Fiber. ACS Photonics, 5(6), 2426-2430. doi:10.1021/acsphotonics.8b00197.


Cite as: https://hdl.handle.net/21.11116/0000-0002-B508-9
Abstract
Ultrafast broadband ultraviolet radiation is of importance in spectroscopy and photochemistry, since high photon energies enable single-photon excitations and ultrashort pulses allow time-resolved studies. Here we report the use of gas-filled hollow-core photonic crystal fibers (HC-PCFs) for efficient ultrafast nonlinear optics in the ultraviolet. Soliton selfcompression of 400 nm pulses of (unprecedentedly low) ∼500 nJ energies down to sub-6 fs durations is achieved, as well as resonant emission of tunable dispersive waves from these solitons. In addition, we discuss the generation of a flat supercontinuum extending from the deep ultraviolet to the visible in a hydrogen-filled HC-PCF. Comparisons with argon-filled fibers show that the enhanced Raman gain at high frequencies makes the hydrogen system more efficient. As HC-PCF technology develops, we expect these fiber-based ultraviolet sources to lead to new applications.