Guo Fu-Ming et al 2009 Chinese Phys. Lett. 26 113203 doi:10.1088/0256-307X/26/11/113203
Guo Fu-Ming, Yang Yu-Jun, Jin Ming-Xing, Ding Da-Jun and Zhu Qi-Ren
Show affiliationsUsing a linearly polarized, phase-stabilized 3-fs driving pulse of 800 nm central wavelength shape-optimized on its ascending edge by its an amplitude-reduced pulse irradiating on a superposition state of the helium atom, we demonstrate theoretically the generation of a super strong isolated 176-attosecond pulse in the spectral region of 93–124 eV. The unusually high intensity of this attosecond pulse is marked by the Rabi-like oscillations emerging in the time-dependent populations of the ground state and the continuum during the occurrence of the electron recombination, which is for the first time observed in this work.
32.80.Xx Level crossing and optical pumping
42.65.Re Ultrafast processes; optical pulse generation and pulse compression
42.65.Ky Frequency conversion; harmonic generation, including higher-order harmonic generation
Issue 11 (November 2009)
Received 30 March 2009
Guo Fu-Ming et al 2009 Chinese Phys. Lett. 26 113203
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