scholarly journals Isolated intense 38 attosecond pulse generation from the combined laser pulse irradiating the coherent superposition state

2011 ◽  
Vol 60 (5) ◽  
pp. 053206
Author(s):  
Yu Xu-Ping ◽  
Chen Ji-Gen ◽  
He Long-Jun ◽  
Xu Yuan-Yuan ◽  
Yang Yu-Jun
Keyword(s):  
Laser Pulse ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
Superposition State ◽  
Coherent Superposition ◽  
Attosecond Pulse Generation

Control of single attosecond pulse generation from the reflection of a synthesized relativistic laser pulse on a solid surface

2008 ◽  
Vol 15 (10) ◽  
pp. 103107 ◽  
Author(s):  
Li Liu ◽  
Changquan Xia ◽  
Jiansheng Liu ◽  
Wentao Wang ◽  
Yi Cai ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Solid Surface ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
Attosecond Pulse Generation

Single attosecond pulse generation from asymmetric molecules with a multicycle laser pulse

2007 ◽  
Vol 32 (9) ◽  
pp. 1186 ◽  
Author(s):  
Pengfei Lan ◽  
Peixiang Lu ◽  
Wei Cao ◽  
Xinlin Wang ◽  
Weiyi Hong
Keyword(s):  
Laser Pulse ◽  
Pulse Generation ◽  
Attosecond Pulse ◽  
Attosecond Pulse Generation

Intense Isolated Short Attosecond Pulse Generation from a Coherent Superposition State in a Spatially Inhomogeneous Field

2018 ◽  
Vol 73 (4) ◽  
pp. 303-313
Author(s):  
Gangtai Zhang ◽  
Tingting Bai
Keyword(s):  
Excited States ◽  
Harmonic Spectrum ◽  
Pulse Generation ◽  
Spatial Inhomogeneity ◽  
Inhomogeneous Field ◽  
Superposition State ◽  
Initial State ◽  
Coherent Superposition ◽  
Spatially Inhomogeneous ◽  
Attosecond Pulse Generation

AbstractWe theoretically present an efficient method of generating an intense isolated short attosecond (as) pulse in a spatially inhomogeneous field. It is shown that this spatiotemporally combined field can significantly extend the harmonic cut-off and enhance the harmonic efficiency when the initial state is a coherent superposition of the ground and excited states. Then, a highly efficient continuum spectrum with an extremely wide bandwidth is directly generated. Due to the introduction of the spatial inhomogeneity, the short path is selected and the long one is removed; as a result, an intense isolated 17.3-as pulse is obtained straightforwardly. In addition, we also investigate the influences of the parameters including the population of the excited state, spatial inhomogeneity, carrier–envelope phase, pulse duration, and intensity on the harmonic spectrum.

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