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2. The wavelength dependence of high-order harmonic generationand attosecond pulses from atom in infrared laser field

Author

Zhou Xiao-Xin, Li Peng-Cheng, and Cheng Chun-Zhi

Subjects
Physics, Field (physics), business.industry, Attosecond, Far-infrared laser, Energy conversion efficiency, Physics::Optics, General Physics and Astronomy, Wavelength, Optics, Atom, Harmonic, High harmonic generation, Atomic physics, business
Abstract

Basing on the strong-field approximation, we study high harmonic generation of hydrogen atom exposed to the long wavelength infrared laser field, and analyze the wavelength dependence of conversion efficiency of high-order harmonic generation near the cut-off position. It is found that high-order harmonic yield is much lower near cut-off than in the beginning of the plateau of the harmonic generation, but the width of the attosecond pulse is narrowed with increasing wavelength.

Published
2011

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