Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Belli, Federico"'
Autor:
Zhang, Hao, Sun, Linshan, Hirschman, Jack, Shariatdoust, Mirali Seyed, Belli, Federico, Carbajo, Sergio
Four-wave mixing (FWM) in gas-filled hollow-core capillaries, a nonlinear optical process that mixes signal and pump photon frequencies to generate idler frequency photons, offers a method for precise spectral phase transfer from signal to idler at u
Externí odkaz:
http://arxiv.org/abs/2404.16993
Autor:
Lekosiotis, Athanasios, Belli, Federico, Brahms, Christian, Sabbah, Mohammed, Sakr, Hesham, Davidson, Ian A., Poletti, Francesco, Travers, John C.
We report the flexible on-target delivery of 800 nm wavelength, 5 GW peak power, 40 fs duration laser pulses through an evacuated and tightly coiled 10 m long hollow-core nested anti-resonant fiber by positively chirping the input pulses to compensat
Externí odkaz:
http://arxiv.org/abs/2305.16911
We experimentally and numerically investigate flat supercontinuum generation in gas-filled anti-resonant guiding hollow-core photonic crystal fiber. By comparing results obtained with either argon or nitrogen we determine the role of the rotational R
Externí odkaz:
http://arxiv.org/abs/2305.07496
We experimentally investigate the nonlinear dynamics of ultrashort laser pulses propagating in gas-filled hollow capillary fibres in different dispersion regimes, which are achieved by tuning the gas pressure. When the pulse propagates in the anomalo
Externí odkaz:
http://arxiv.org/abs/2302.01113
Autor:
Sabbah, Mohammed, Belli, Federico, Brahms, Christian, Yu, Fei, Knight, Jonathan, Travers, John C.
We investigate soliton self-compression and photoionization effects in an argon-filled antiresonant hollow-core photonic crystal fiber pumped with a commercial Yb:KGW laser. Before the onset of photoionization, we demonstrate self-compression of our
Externí odkaz:
http://arxiv.org/abs/2212.11908
Autor:
Lekosiotis, Athanasios, Brahms, Christian, Belli, Federico, Grigorova, Teodora F., Travers, John C.
Publikováno v:
Opt. Lett. 46, 4057-4060 (2021)
We experimentally demonstrate the efficient generation of circularly polarized pulses tunable from the vacuum to deep ultraviolet (160-380 nm) through resonant dispersive wave emission from optical solitons in a gas-filled hollow capillary fiber. In
Externí odkaz:
http://arxiv.org/abs/2105.14349
Autor:
Gao, Shou-Fei, Wang, Ying-Ying, Belli, Federico, Brahms, Christian, Wang, Pu, Travers, John C.
We demonstrate a route to supercontinuum generation in gas-filled hollow-core anti-resonant fibers through the creation of a broad vibrational Raman frequency comb followed by continuous broadening and merging of the comb lines through either rotatio
Externí odkaz:
http://arxiv.org/abs/2011.01656
Publikováno v:
Opt. Lett. 45(20) 5648-5651 (2020)
We demonstrate an efficient scheme for the generation of broadband, high-energy, circularly polarized femtosecond laser pulses in the deep ultraviolet through seeded degenerate four-wave mixing in stretched gas-filled hollow capillary fibers. Pumping
Externí odkaz:
http://arxiv.org/abs/2006.12149
Publikováno v:
Optics Letters Vol. 45, Issue 16, pp. 4456-4459 (2020)
Resonant dispersive wave (RDW) emission in gas-filled hollow waveguides is a powerful technique for the generation of bright few-femtosecond laser pulses from the vacuum ultraviolet to the near infrared. Here we investigate deep-ultraviolet RDW emiss
Externí odkaz:
http://arxiv.org/abs/2005.11091
Publikováno v:
Phys. Rev. Research 2, 043037 (2020)
Infrared femtosecond laser pulses are important tools both in strong-field physics, driving X-ray high-harmonic generation, and as the basis for widely tuneable, if inefficient, ultrafast sources in the visible and ultraviolet. Although anomalous mat
Externí odkaz:
http://arxiv.org/abs/1910.10458