Results 21 to 30 of about 261,800 (180)
Recent trends in high-order harmonic generation in solids
High-order harmonic generation in solids, the nonlinear up-conversion of coherent radiation resulting from the interaction of a strong and short laser pulse with a solid sample, has come to age.
Jongkyoon Park +3 more
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Generation of Intense High-Order Vortex Harmonics [PDF]
This paper presents the method for the first time to generate intense high-order optical vortices that carry orbital angular momentum in the extreme ultraviolet region. In three-dimensional particle-in-cell simulation, both the reflected and transmitted light beams include high-order harmonics of the Laguerre-Gaussian (LG) mode when a linearly ...
Zhang, X +8 more
openaire +5 more sources
We study high-order harmonics generation from plasmas generated from graphite, fullerenes, carbon nanotubes, carbon nanofibers, diamond nanoparticles, and graphene.
Rashid A. Ganeev +3 more
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Resonant enhancements of high-order harmonic generation [PDF]
Solving the one-dimensional time-dependent Schr\"odinger equation for simple model potentials, we investigate resonance-enhanced high-order harmonic generation, with emphasis on the physical mechanism of the enhancement.
A. Sanpera +34 more
core +2 more sources
Spectral Shifts of Nonadiabatic High-Order Harmonic Generation
High-order harmonic generation (HHG) is a nonlinear nonperturbative process in ultrashort intense laser-matter interaction. It is the main source of coherent attosecond (1 as = 10−18 s) laser pulses to investigate ultrafast electron dynamics.
André D. Bandrauk, Xue-Bin Bian
doaj +1 more source
High-order harmonic generation [PDF]
A brief overview of high‐order harmonic generation is given. Special emphasis is made on the use of this technique as a source of coherent radiation in the extreme ultraviolet. The experimental techniques as well as some characteristics of the generated radiation are presented.
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Broadband Spectral Amplitude Control in High-Order Harmonic Generation
A technique for broadband spectral amplitude control of light pulses produced in high-order harmonic generation (HHG) is presented. It has been shown elsewhere that broadband spectral phase control in HHG is achievable using a computerized feedback loop ...
Carles Serrat
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High Order Harmonic Generation in Three Pulse Scattering Geometry
We study the generation of high order harmonics produced by the interaction of three intense and ultrafast noncollinear laser pulses. Harmonic radiation, not overlapped to the direction of the incident pulses, is observed.
Stagira Salvatore +4 more
doaj +1 more source
Quantum Path Interferences in High-Order Harmonic Generation [PDF]
We have investigated the intensity dependence of high-order harmonic generation in argon when the two shortest quantum paths contribute to the harmonic emission. For the first time to our knowledge, experimental conditions were found to clearly observe interference between these two quantum paths that are in excellent agreement with theoretical ...
Zair, A +13 more
openaire +2 more sources
High-order-harmonic generation from field-distorted orbitals [PDF]
We investigate the effect on high-order harmonic generation of the distortion of molecular orbitals by the driving laser field. Calculations for high-order harmonic generation including orbital distortion are performed for N2. Our results allow us to suggest that field-distortion is the reason why the two-center interference minimum has never been ...
Maciej Dominik Śpiewanowski +2 more
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