Time-dependent Phase-matching in Attosecond Pulse Generation

2010 ◽  
Author(s):  
Katalin Kovács ◽  
Valer Toşa ◽  
Dan Dumitras
Keyword(s):  
Pulse Generation ◽  
Attosecond Pulse ◽  
Time Dependent ◽  
Phase Matching ◽  
Attosecond Pulse Generation

scholarly journals Isolated broadband attosecond pulse generation with near- and mid-infrared driver pulses via time-gated phase matching

2017 ◽  
Vol 25 (10) ◽  
pp. 11855 ◽  
Author(s):  
C. Hernández-García ◽  
T. Popmintchev ◽  
M. M. Murnane ◽  
H. C. Kapteyn ◽  
L. Plaja ◽  
...  
Keyword(s):  
Pulse Generation ◽  
Attosecond Pulse ◽  
Phase Matching ◽  
Mid Infrared ◽  
Attosecond Pulse Generation

QUANTUM WAVE-PACKET EXPLORATION OF ISOLATED ULTRA-SHORT ATTOSECOND PULSE GENERATION BY A MODIFIED THREE-COLOR LASER FIELD SCHEME

2013 ◽  
Vol 12 (01) ◽  
pp. 1250098
Author(s):  
YUNHUI WANG ◽  
HAIPING WU ◽  
CHAO YU ◽  
QI SHI ◽  
KAIMING DENG ◽  
...  
Keyword(s):  
Laser Field ◽  
Three Dimensional ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
Time Dependent ◽  
High Order Harmonic ◽  
Quantum Wave ◽  
Attosecond Pulse Generation ◽  
Color Field ◽  
Harmonic Conversion

By numerically solving the three dimensional time-dependent Schrödinger equation, we explore the high-order harmonic and attosecond pulse generation of He atoms exposed to a special three-color field. An ultrabroad supercontinuum with a bandwidth of 887 eV has been attained, supporting an isolated 4 as pulse straightforwardly by Fourier transforming. Utilizing available intense infrared femtosecond laser resource within the nonrelativistic regime, the produced laser pulse is near to zeptosecond region. Remarkably, the harmonic conversion efficiency is enhanced in terms of the double-plateau structure of the harmonic spectra, yielding high-intensity attosecond pulses with alternative plateau.

XUV pulse effect on harmonic emission spectra and attosecond pulse generation

2017 ◽  
Vol 31 (34) ◽  
pp. 1750282 ◽  
Author(s):  
Liqiang Feng ◽  
R. S. Castle ◽  
Yi Li
Keyword(s):  
Near Infrared ◽  
Three Dimensional ◽  
Emission Spectra ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
High Order ◽  
Time Dependent ◽  
High Order Harmonic Generation ◽  
High Order Harmonic ◽  
Attosecond Pulse Generation

The generation of the high-order harmonic and the attosecond pulse from He atom driven by the near-infrared (NIR) field combined with the XUV pulse has been theoretically investigated by solving the three-dimensional time-dependent Schrödinger equation. The results show that by properly adding the XUV pulse into the NIR field, (i) not only the harmonic yield is enhanced, caused by the laser-induced excited state effect; but also the multi-cutoff extension of the harmonics can be found, caused by the absorption of the extra XUV photons during its recombination process. (ii) With the introduction of the XUV pulse, the frequency modulation of the high-order harmonic generation (HHG) can be found and controlled. (iii) By directly superposing the harmonics in the cutoff region, two isolated XUV pulses with the durations of 150 as can be obtained.

Research Progress of Attosecond Pulse Generation and Characterization （Invited）

2021 ◽  
Vol 50 (1) ◽  
pp. 1-25
Author(s):  
王虎山 Hushan WANG ◽  
曹华保 Huabao CAO ◽  
皮良文 Liangwen PI ◽  
黄沛 Pei HUANG ◽  
王向林 Xianglin WANG ◽  
...  
Keyword(s):  
Pulse Generation ◽  
Attosecond Pulse ◽  
Research Progress ◽  
Attosecond Pulse Generation

scholarly journals Influence of generalized focusing of few-cycle Gaussian pulses in attosecond pulse generation

2013 ◽  
Vol 21 (21) ◽  
pp. 24991 ◽  
Author(s):  
Ebrahim Karimi ◽  
Carlo Altucci ◽  
Valer Tosa ◽  
Raffaele Velotta ◽  
Lorenzo Marrucci
Keyword(s):  
Pulse Generation ◽  
Attosecond Pulse ◽  
Attosecond Pulse Generation

Isolated-attosecond-pulse generation by suppressing multiple rescatterings with plasmon-enhanced laser fields

2017 ◽  
Vol 50 (3) ◽  
pp. 176-182 ◽  
Author(s):  
Yi-Na Zheng ◽  
Cai-Ping Zhang ◽  
Hui-Fang Cui ◽  
Xiao-Hu Xu ◽  
Chang-Long Xia ◽  
...  
Keyword(s):  
Pulse Generation ◽  
Attosecond Pulse ◽  
Laser Fields ◽  
Isolated Attosecond Pulse ◽  
Attosecond Pulse Generation
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