Results 61 to 70 of about 261,800 (180)
High order harmonic generation in solids: a review on recent numerical methods
Interaction of intense lasers with solid materials offers an alternative way to achieve high-order harmonic generation (HHG). Since the underlying mechanisms of the harmonic emission remain uncertain, a large number of theoretical studies have been ...
Chao Yu, Shicheng Jiang, Ruifeng Lu
doaj +1 more source
We present a generic approach for treating the effect of nuclear motion in the high-order harmonic generation from polyatomic molecules. Our procedure relies on a separation of nuclear and electron dynamics where we account for the electronic part using ...
C. B. Madsen +6 more
core +1 more source
Interference-Induced Phenomena in High-Order Harmonic Generation from Bulk Solids
We consider a quantum mechanical model for the high-order harmonic generation in bulk solids. The bandgap is assumed to be considerably larger than the exciting photon energy.
Viktor Szaszkó-Bogár +3 more
doaj +1 more source
On the recombination in high-order harmonic generation in molecules
We show that the dependence of high-order harmonic generation (HHG) on the molecular orientation can be understood within a theoretical treatment that does not involve the strong field of the laser.
B. Lohmann +7 more
core +1 more source
Theory of high-order harmonic generation from molecules by intense laser pulses
We show that high-order harmonics generated from molecules by intense laser pulses can be expressed as the product of a returning electron wave packet and the photo-recombination cross section (PRCS) where the electron wave packet can be obtained from ...
Anh-Thu Le +10 more
core +1 more source
Theoretical investigation of the effect of the polarization angle on high-order harmonic generation in an inhomogeneous two-color field is reported.
Stephen Maina Njoroge
doaj +1 more source
Laser Requirements for High-Order Harmonic Generation by Relativistic Plasma Singularities
We discuss requirements on relativistic-irradiance (I0 > 1018 W/cm2) high-power (multi-terawatt) ultrashort (femtosecond) lasers for efficient generation of high-order harmonics in gas jet targets in a new regime discovered recently (Pirozhkov et al.,
Alexander S. Pirozhkov +21 more
doaj +1 more source
Optimal control theory of harmonic generation
Coherent control of harmonic generation was studied theoretically. A specific harmonic order was targeted. An optimal control theory was employed to find the driving field where restrictions were imposed on the frequency band.
Kosloff, Ronnie, Schaefer, Ido
core +1 more source
High-order harmonic generation from hybrid organic–inorganic perovskite thin films
The generation of high-order harmonics from hybrid organic–inorganic perovskites (HOIPs) is demonstrated by the excitation with a strong mid-infrared laser pulse.
Hideki Hirori +12 more
doaj +1 more source
Polarization-resolved analysis of high-order harmonic generation in monolayer MoS2
We employ a theoretical model based on the density-matrix equation in the velocity gauge to calculate high harmonic generation from monolayer MoS _2 .
Candong Liu +3 more
doaj +1 more source

