Generation of a sub-atomic unit attosecond pulse via two-color hyper-Gaussian pulses

Laser Physics ◽  
2020 ◽  
Vol 30 (5) ◽  
pp. 055401
Author(s):  
Chaojin Zhang ◽  
Chengpu Liu
Keyword(s):  
Attosecond Pulse ◽  
Atomic Unit

Generation of an Attosecond Pulse Based on Collective Spontaneous Radiation Emission of a Layer of Three-Level Atoms Excited by a Pair of Unipolar Pulses

2020 ◽  
Vol 128 (11) ◽  
pp. 1857-1864
Author(s):  
R. M. Arkhipov ◽  
M. V. Arkhipov ◽  
I. Babushkin ◽  
A. V. Pakhomov ◽  
N. N. Rosanov
Keyword(s):  
Attosecond Pulse ◽  
Spontaneous Radiation ◽  
Radiation Emission

Chirp waveform control to produce broad harmonic plateau and single attosecond pulse

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hang Liu ◽  
Cui-Yan Xu ◽  
Xiao-Dan Jing ◽  
Yan Qiao ◽  
Li-Qiang Feng
Keyword(s):  
Instantaneous Frequency ◽  
Free Electron ◽  
Fourier Transformation ◽  
Attosecond Pulse ◽  
The Other ◽  
Laser Parameters ◽  
Waveform Control ◽  
Chirped Pulses ◽  
Attosecond Pulses

Abstract Waveform control of three kinds of chirped pulses (i.e. βt, βt 2 and βt 3) to produce harmonic spectra and attosecond pulses has been investigated. It is found that by properly choosing the chirps, the chirp delays and the other laser parameters, not only the instantaneous frequency of some specific half profiles can be decreased, but also its intensity can be increased. As a result, the free electron can receive more energy when it accelerates in these regions, thus leading to the extension of the harmonic cutoff and harmonic plateau. Finally, through the Fourier transformation of the harmonic spectra and by superposing some harmonics, three single attosecond pulses with the durations of 30 as, 33 as and 39 as can be obtained.

Attosecond pulse characterization by XUV nonlinear optics

2006 ◽  
Author(s):  
Taro Sekikawa ◽  
Atsushi Kosuge ◽  
Teruto Kanai ◽  
Shuntaro Watanabe
Keyword(s):  
Nonlinear Optics ◽  
Attosecond Pulse ◽  
Pulse Characterization

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

Attosecond Interferometry Using a HHG-2 Scheme

2020 ◽  
Vol 65 (1-2) ◽  
pp. 35-47
Author(s):  
V. Loriot ◽  
◽  
A. Marciniak ◽  
S. Nandi ◽  
G. Karras ◽  
...  
Keyword(s):  
Pulse Train ◽  
Time Delays ◽  
Attosecond Pulse ◽  
Ionization Time ◽  
Atoms And Molecules ◽  
Attosecond Science

"We present an interferometric HHG-2 scheme and compare it to the usual XUV-IR RABBIT method that is widely used in attosecond science. Both methods are able to reconstruct the properties of an attosecond pulse train and can be used to measure attosecond ionization time delays in atoms and molecules. While they have several similarities, they also have conceptual differences. Here, we present some particularities of the HHG-2 method and its advantages and drawbacks, which would help to define situations where it can provide information inaccessible by other technics. Keywords: Attosecond, Photoionization, RABBIT "

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