Zobrazeno 1 - 10
of 888
pro vyhledávání: '"A. Dubietis"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract We report on experimental and numerical investigation of burst-mode supercontinuum generation in sapphire crystal. The experiments were performed using bursts consisting of two 190 fs, 1030 nm pulses with intra-burst repetition rates of 62.5
Externí odkaz:
https://doaj.org/article/cfe09ce184b045a2bafcfe8944ee4233
Publikováno v:
Results in Physics, Vol 14, Iss , Pp - (2019)
We study supercontinuum generation with femtosecond mid-infrared laser pulses in NaCl and KBr crystals when pumped at the vicinity of their zero group velocity dispersion points. Almost three octave-spanning SC spectra (covering the 0.7–5.4 μm and
Externí odkaz:
https://doaj.org/article/0ce3011b5cd04728ba14f4cb89b7b6a5
Publikováno v:
Nonlinear Analysis, Vol 9, Iss 3 (2004)
We study numerically and experimentally self-focusing dynamics of femtosecond light pulses. By demonstrating the potential of three dimensional imaging technique for quantitative recovery of complex (arbitrarily shaped) wave packets, we monitor space
Externí odkaz:
https://doaj.org/article/40d0c98ea0a34c4eb35ea513aa818732
Publikováno v:
Nonlinear Analysis, Vol 6, Iss 1 (2001)
We report on observation of self-guiding of picosecond laser pulses in air that produces large-scale self-phase modulation. The converging picosecond laser beam produced a confined filament over 3 m of propagation with the whitelight spectrum.
Externí odkaz:
https://doaj.org/article/654a1e0a164e4ee3b982e4ec769cba1c
Publikováno v:
Nonlinear Analysis, Vol 5 (2000)
Self-compression of visible optical pulse in bulk χ(3) medium has been demonstrated taking the advantage of negative group-velocity dispersion of tilted pulses.
Externí odkaz:
https://doaj.org/article/32d5e79b95cf488fb4ce5fa0bfcd62de
Publikováno v:
In Optics and Laser Technology February 2024 169
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-7 (2022)
Abstract The formation and evolution of laser-induced periodic surface structures in fused silica under irradiation of widely tunable (in the 1–3 $$\upmu$$ μ m range) linearly polarized femtosecond (200 fs) pulses was studied experimentally. The s
Externí odkaz:
https://doaj.org/article/234378b1f1a849c3b9e35d6c3633be28
Autor:
Vezzoli, Stefano, Bruno, Vincenzo, DeVault, Clayton, Roger, Thomas, Shalaev, Vladimir M., Boltasseva, Alexandra, Ferrera, Marcello, Clerici, Matteo, Dubietis, Audrius, Faccio, Daniele
Publikováno v:
Phys. Rev. Lett. 120, 043902 (2018)
Materials with a spatially uniform but temporally varying optical response have applications ranging from magnetic field-free optical isolators to fundamental studies of quantum field theories. However, these effects typically become relevant only fo
Externí odkaz:
http://arxiv.org/abs/1709.06972
Autor:
Dubietis, Audrius, Tamošauskas, Gintaras, Šuminas, Rosvaldas, Jukna, Vytautas, Couairon, Arnaud
Publikováno v:
Lith. J. Phys. 57(3), 113 (2017)
Nonlinear propagation of intense femtosecond laser pulses in bulk transparent media leads to a specific propagation regime, termed femtosecond filamentation, which in turn produces dramatic spectral broadening, or superbroadening, termed supercontinu
Externí odkaz:
http://arxiv.org/abs/1706.04356
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