Cao Shaowen, Zhang Rongzhu, Sun Nianchun. Analysis of spatial singularity of the ultrashort chirped Gaussian multi-pulse superposition[J]. Infrared and Laser Engineering, 2018, 47(10): 1006002-1006002(6). doi: 10.3788/IRLA201847.1006002
Citation:
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Cao Shaowen, Zhang Rongzhu, Sun Nianchun. Analysis of spatial singularity of the ultrashort chirped Gaussian multi-pulse superposition[J]. Infrared and Laser Engineering, 2018, 47(10): 1006002-1006002(6). doi: 10.3788/IRLA201847.1006002
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Analysis of spatial singularity of the ultrashort chirped Gaussian multi-pulse superposition
- Received Date: 2018-05-05
- Rev Recd Date:
2018-06-03
- Publish Date:
2018-10-25
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Abstract
According to the application requirement of ICF system, an analysis model of energy superposing on the target plane of four-ultrashort chirped Gaussian pulses was established. By using the analytical expression of the envelope of complex exponential function, the spatial singularity of one pulse and superposition of multi-pulses were analyzed by numerical simulation. The results show that the pulse width is the main factor to influence the spatial singularity phenomenon of the ultrashort chirped Gaussian pulse. While the pulse width was less than one oscillation period, the parameters should be controlled carefully within reasonable horizontal distance, which was less than 1w0 in order to prevent the spatial singularity.
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References
[1]
|
Perry M D, Mourou G. Terawatt to petawatt subpicosecond lasers[J]. Science, 1994, 264(5161):917-924. |
[2]
|
Chang Tieqiang. Fast ignition physics and its requirements to numerical simulation[J]. China Nuclear Science and Technology Report, 2004(1):30-39. (in Chinese) |
[3]
|
Christov I P. Propagation of femtosecond light pulses[J]. Opt Commun, 1985, 53(6):364-366. |
[4]
|
Diels J C, Rudolph W. Ultrashort Laser Pulse Phenomena[M]. London:Academic Press, 2006. |
[5]
|
Walmsley I, Waxer I, Dorrer C. The role of dispersion in ultrafast optics[J]. Science, 2001, 72(1):1-29. |
[6]
|
Frei F, Rudolp A, Feurer T. Space-time coupling in femtosecond pulse shaping and its effects on coherent control[J]. J Chem Phys, 2009, 130(3):1929. |
[7]
|
Zeng Shuguang, Liu Yan, He Huiling. Research progress of spatio-temporal couplings in ultrashort laser pulses[J]. Optics and Optoelectronic Technology, 2013, 11(5):0017-0021. (in Chinese) |
[8]
|
Zhang Jiatai, He Bin, He Xianshi, et al. Study on the mechanism of the fast ignition in laser fusion[J]. Acta Physica Sinica, 2001, 50(5):921-925. (in Chinese) |
[9]
|
Porras M A. Ultrashort pulsed Gaussian light beams[J]. Phys Rev E, 1998, 58:1086-1093. |
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Proportional views
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