Intense Isolated Ultrashort Attosecond Pulse Generation in a Multi-Cycle Three-Colour Laser Field

2014 ◽  
Vol 69 (12) ◽  
pp. 673-686 ◽  
Author(s):  
Gang-Tai Zhang
Keyword(s):  
Laser Field ◽  
High Efficiency ◽  
Harmonic Spectrum ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
Smooth Structure ◽  
Single Quantum ◽  
Isolated Attosecond Pulse ◽  
Attosecond Pulse Generation ◽  
Selection Of

AbstractAn efficient method for generating an intense isolated ultrashort attosecond pulse is presented theoretically. By adding a 267 nm controlling pulse to a multi-cycle two-colour field, not only the spectral cutoff and the yields of the harmonic spectrum are evidently enhanced, but also the selection of the single quantum path is realised. Then a high-efficiency supercontinuum with a 504 eV bandwidth and smooth structure is obtained, which enables the production of an intense isolated 30 as pulse. In addition, the influences of the laser parameters on the supercontinuum and isolated attosecond pulse are investigated.

scholarly journals Efficient isolated attosecond pulse generation from a multi-cycle two-color laser field

2007 ◽  
Vol 15 (2) ◽  
pp. 530 ◽  
Author(s):  
Wei Cao ◽  
Peixiang Lu ◽  
Pengfei Lan ◽  
Xinlin Wang ◽  
Guang Yang
Keyword(s):  
Laser Field ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
Isolated Attosecond Pulse ◽  
Attosecond Pulse Generation

scholarly journals Macroscopic effects of high-order harmonic and isolated attosecond pulse generation driven by two-color laser field

2011 ◽  
Vol 60 (10) ◽  
pp. 103202
Author(s):  
Lu Ying-Ying ◽  
Zeng Zhi-Nan ◽  
Zheng Ying-Hui ◽  
Zou Pu ◽  
Liu Can-Dong ◽  
...  
Keyword(s):  
Laser Field ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
High Order ◽  
High Order Harmonic ◽  
Isolated Attosecond Pulse ◽  
Attosecond Pulse Generation

Simulation of Intense Isolated Attosecond Pulse Generation with a Two-color Laser Field

2012 ◽  
Vol 132 (8) ◽  
pp. 1265-1272
Author(s):  
Abdolreza Amani Eilanlou ◽  
Kenichi L. Ishikawa ◽  
Yasuo Nabekawa ◽  
Hiroyuki Takahashi ◽  
Katsumi Midorikawa
Keyword(s):  
Laser Field ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
Isolated Attosecond Pulse ◽  
Attosecond Pulse Generation

Elliptical isolated attosecond-pulse generation from an atom in a linear laser field

2020 ◽  
Vol 102 (3) ◽  
Author(s):  
Xiaofan Zhang ◽  
Xiaosong Zhu ◽  
Xi Liu ◽  
Feng Wang ◽  
Meiyan Qin ◽  
...  
Keyword(s):  
Laser Field ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
Isolated Attosecond Pulse ◽  
Attosecond Pulse Generation ◽  
Linear Laser

Isolated attosecond pulse generation from different frequency-chirping combined fields

2019 ◽  
Vol 33 (21) ◽  
pp. 1950241
Author(s):  
Hui Liu ◽  
Hang Liu ◽  
Liqiang Feng
Keyword(s):  
Laser Field ◽  
Harmonic Spectrum ◽  
Higher Order ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
Middle Region ◽  
Chirped Pulse ◽  
High Order Harmonic ◽  
Isolated Attosecond Pulse ◽  
Frequency Chirping

Generation of high-order harmonic spectrum and isolated attosecond pulse (IAP) from frequency-chirping combined field has been investigated. It is found that by adding the middle-chirp form of the laser field, the extension of the harmonic cutoff comes from the middle region of the laser field. However, the intensity of the higher-order spectral continuum is very low. By adding the asymmetric negative chirp form of the laser field, the extension of the harmonic cutoff is attributed to the falling region of the laser field. Moreover, the intensity of the higher-order spectral continuum presents similar value as that produced from the chirp-free pulse. Further, by properly adding a second controlling pulse (i.e., infrared field or ultraviolet pulse) into the fundamental chirped pulse, the intensity of the harmonic spectrum can be enhanced by 2–3 and 1–2 orders of magnitudes for the cases of the middle-chirp form and the asymmetric negative chirp form, respectively. Finally, by using the best laser conditions, a series of isolated attosecond pulses with the durations of 38 as can be produced.

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