Optimization of single attosecond x-ray pulses by genetic algorithm control of the chirp and initial phase of 5 fs laser pulses

Journal Article · Sat Apr 15 00:00:00 EDT 2006 · Journal of the Optical Society of America. Part B, Optical Physics

DOI:https://doi.org/10.1364/JOSAB.23.000771· OSTI ID:20768753

Jun, Xiao; Zhenrong, Sun; Xiangyun, Zhang; Yufeng, Wang; Weiping, Zhang; Zugeng, Wang; Ruxin, Li; Zhizhan, Xu ^[1]

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1. Department of Physics, Key Laboratory of Optical and Magnetic Resonance Spectroscopy, and Department of Mathematics, East China Normal University, Shanghai 200062 (China)

We show that the peak intensity of single attosecond x-ray pulses is enhanced by 1 or 2 orders of magnitude, the pulse duration is greatly compressed, and the optimal propagation distance is shortened by genetic algorithm optimization of the chirp and initial phase of 5 fs laser pulses. However, as the laser intensity increases, more efficient nonadiabatic self-phase matching can lead to a dramatically enhanced harmonic yield, and the efficiency of optimization decreases in the enhancement and compression of the generated attosecond pulses.

• OSTI ID: 20768753
• Journal Information: Journal of the Optical Society of America. Part B, Optical Physics, Vol. 23, Issue 4; Other Information: DOI: 10.1364/JOSAB.23.000771; (c) 2006 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALGORITHMS
COMPRESSION
CONTROL THEORY
EFFICIENCY
MODULATION
OPTIMIZATION
PULSES
X-RAY LASERS