Sub-half-cycle field transients from shock-wave-assisted soliton self-compression
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-67134-y
Abstract: We identify an unusual regime of ultrafast nonlinear dynamics in which an optical shock wave couples to soliton self-compression, steepening the tail of the pulse, thus yielding self-compressing soliton transients as short as the field… read more here.
Keywords: sub half; self compression; shock wave; half cycle ... See more keywords
Effect of decreasing pressure on soliton self-compression in higher-order modes of a gas-filled capillary.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.418217
Abstract: We numerically investigate soliton self-compression in the higher-order modes of a gas-filled capillary with decreasing pressure. We demonstrate four times enhancement in the compression with the decreasing pressure compared to the equivalent constant pressure case… read more here.
Keywords: decreasing pressure; compression higher; soliton self; pressure ... See more keywords
Efficient self-compression of ultrashort near-UV pulses in air-filled hollow-core photonic crystal fibers.
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DOI: 10.1364/oe.422815
Abstract: We report generation of ultrashort near-UV pulses by soliton self-compression in kagomé-style hollow-core photonic crystal fibers filled with ambient air. Pump pulses with the energy of 2.6 µJ and duration of 54 fs at 400… read more here.
Keywords: ultrashort near; near pulses; hollow core; compression ... See more keywords
Study of wavelength-dependent pulse self-compression for high intensity pulse propagation in gas-filled capillaries.
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DOI: 10.1364/oe.432478
Abstract: We theoretically investigate the wavelength-dependent pulse self-compression dynamics of intense femtosecond laser pulses in gas-filled capillaries. Simulations with λ = 1, 2, 3 and 4 µm using the multimode carrier-resolved unidirectional pulse propagation equation reveal pulse… read more here.
Keywords: dependent pulse; gas filled; wavelength dependent; self compression ... See more keywords
Optimization of pulse self-compression in hollow capillary fibers using decreasing pressure gradients.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.451264
Abstract: The improvement of techniques for the generation of near-infrared (NIR) few-cycle pulses is paving the way for new scenarios in time-resolved spectroscopy and the generation of ultrashort extreme-ultraviolet pulses through high-harmonic generation. In this work,… read more here.
Keywords: using decreasing; pressure gradients; decreasing pressure; compression ... See more keywords
Nonlinear post-compression in multi-pass cells in the mid-IR region using bulk materials.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.471458
Abstract: We numerically investigate the regime of nonlinear pulse compression at mid-IR wavelengths in a multi-pass cell (MPC) containing a dielectric plate. This post-compression setup allows for ionization-free spectral broadening and self-compression while mitigating self-focusing effects.… read more here.
Keywords: compression; post compression; multi pass; self compression ... See more keywords