UV soliton dynamics and Raman-enhanced supercontinuum generation in photonic crystal fiber
arXiv:1810.02151 · doi:10.1021/acsphotonics.8b00197
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 self-compression 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.
References in corpus (6)
- Hybrid photonic-crystal fiber
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- Generation of micro-J pulses in the deep UV at MHz repetition rates
- Effect of anti-crossings with cladding resonances on ultrafast nonlinear dynamics in gas-filled PCFs
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Cited by in corpus (4)
- Deep-UV to mid-IR supercontinuum generation driven by mid-IR ultrashort pulses in a gas-filled fiber
- Infrared attosecond field transients and UV to IR few-femtosecond pulses generated by high-energy soliton self-compression
- Efficient self-compression of ultrashort UV pulses in air-filled hollow-core photonic crystal fiber
- Deep-UV-enhanced supercontinuum generated in tapered gas-filled photonic crystal fiber