High-order harmonic generation of hydrogen molecule irradiated by ultra-strong femto-second laser pulse——a simulation via TDDFT | Zendy

Bin Gu | Zendy; Lei Cui | Zendy; Xianghua Zeng | Zendy; Zhang Feng-Shou | Zendy

Open Access

High-order harmonic generation of hydrogen molecule irradiated by ultra-strong femto-second laser pulse——a simulation via TDDFT

Author(s) -

Bin Gu,

Lei Cui,

Xianghua Zeng,

Zhang Feng-Shou

Publication year - 2006

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.55.2972

Subject(s) - time dependent density functional theory , high harmonic generation , laser , materials science , ultrashort pulse , femto , pulse (music) , molecule , hydrogen , atomic physics , optics , physics , quantum mechanics , detector

The high order harmonic generation (HHG) of hydrogen molecule irradiated by ultra-strong femto-second laser pulse is simulated by the TTDFT method with the classical and quantum combination technique. The results indicate that the HHG spectra of H2 have a “decrease-plateau-cutoff” structure. A kind of “odd allowed, even forbidden” selective phenomenon of the order number of HHG is observed. Change in polarization direction of laser beam may change the cut-off order and spectrum intensity of HHG simultaneously.

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