Broad spectral range few-cycle laser pulses characterization by using a FASI device
Sign Up to like & getrecommendations! Published in 2021 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2020.106810
Abstract: Abstract Full characterization of few-cycle laser pulses is necessary in many applications. FROG is one of the most widely used full characterization techniques so far, and SRSI is another fresh one with attractive capacity. In… read more here.
Keywords: laser pulses; broad spectral; cycle laser; characterization ... See more keywords
Optical breakdown of solids by few-cycle laser pulses
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-18624-z
Abstract: We show that a broadly accepted criterion of laser-induced breakdown in solids, defining the laser-breakdown threshold in terms of the laser fluence or laser intensity needed to generate a certain fraction of the critical electron… read more here.
Keywords: laser; breakdown solids; laser pulses; cycle laser ... See more keywords
Highly efficient few-cycle laser wakefield electron accelerator
Sign Up to like & getrecommendations! Published in 2021 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/abf80d
Abstract: A significant part of the laser wakefield acceleration (LWFA) research effort focuses on studying high-energy, quasi-monoenergetic electron beams. For other applications, such as the production and application of intense betatron x-ray radiation, Bremsstrahlung γ-rays and… read more here.
Keywords: plasma; laser; laser wakefield; cycle laser ... See more keywords
Graphene valley polarization as a function of carrier-envelope phase in few-cycle laser pulses and its footprints in harmonic signals
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review B"
DOI: 10.1103/physrevb.107.205403
Abstract: We consider coherent dynamics of graphene charged carriers exposed to an intense few-cycle linearly polarized laser pulse. The results, obtained by solving the generalized semiconductor Bloch equations numerically in the Hartree-Fock approximation, taking into account… read more here.
Keywords: envelope phase; cycle; laser; valley polarization ... See more keywords
Bidirectional residual current in monolayer graphene under few-cycle laser irradiation.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.470124
Abstract: By numerically solving the time-dependent Schrödinger equation and semiconductor Bloch equations, the light-induced residual current in monolayer graphene driven by a circularly polarized few-cycle laser is investigated. An evident current direction reversal is disclosed when… read more here.
Keywords: current monolayer; cycle; laser; residual current ... See more keywords
Simple technique for the compression of nanojoule pulses from few-cycle laser oscillator to 1.7-cycle duration via nonlinear spectral broadening in diamond.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.003654
Abstract: We report on a simple approach for the compression of few-cycle laser pulses generated in an ultrafast laser oscillator to a duration corresponding to 1.7 cycles of near-infrared light (compression factor of 1.44) by nonlinear… read more here.
Keywords: compression; spectral broadening; duration; cycle ... See more keywords
Ultrafast Dynamics of Valley-Polarized Excitons in WSe2 Monolayer Studied by Few-Cycle Laser Pulses
Sign Up to like & getrecommendations! Published in 2023 at "Nanomaterials"
DOI: 10.3390/nano13071207
Abstract: We report on the experimental investigation of the ultrafast dynamics of valley-polarized excitons in monolayer WSe2 using transient reflection spectroscopy with few-cycle laser pulses with 7 fs duration. We observe that at room temperature, the… read more here.
Keywords: polarized excitons; ultrafast dynamics; valley polarized; dynamics valley ... See more keywords