Extension of high-order harmonics and generation of an isolated attosecond pulse in the chirped laser field

2010 ◽  
Vol 19 (9) ◽  
pp. 093201 ◽  
Author(s):  
Wu Jie ◽  
Zhai Zhen ◽  
Liu Xue-Shen
Keyword(s):  
Laser Field ◽  
Attosecond Pulse ◽  
High Order ◽  
Isolated Attosecond Pulse

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

High-order harmonic generation with a single-color mid-infrared laser field by frequency-chirping

2019 ◽  
Vol 33 (13) ◽  
pp. 1950122 ◽  
Author(s):  
Yunhui Wang ◽  
Dandan Song ◽  
Qiang Zuo ◽  
Hong Wu ◽  
Zhihong Yang
Keyword(s):  
Harmonic Generation ◽  
Laser Field ◽  
Infrared Laser ◽  
Pulse Generation ◽  
High Order ◽  
Time Dependent ◽  
Mid Infrared ◽  
High Order Harmonic ◽  
Isolated Attosecond Pulse ◽  
Frequency Chirping

By numerically solving the time-dependent Schrödinger equation for helium atoms in a single mid-infrared laser field, we explore the frequency-chirping effect of laser field on high-order harmonic and isolated attosecond pulse generation. One or two ultrabroad supercontinuum harmonic plateaus can be controlled through modulating the laser field frequency by a small time-dependent signal. Under the best chirping condition, an ultrashort 2.2 as pulse can be obtained by Fourier transformation with the bandwidth of 782 eV. Furthermore, we explain the harmonic generation physical mechanisms by classical ionizing and returning energy maps and time–frequency analyzes.

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
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