Below-threshold high-harmonic spectroscopy with aligned hydrogen molecular ions

Fu Yuan Jeng, Dmitry A. Telnov, Shih I. Chu

Research outputpeer-review

Abstract

We present fully ab initio three-dimensional (3D) calculations of highorder harmonic generations (HHG) of aligned hydrogenmolecular ions, HC 2 , subject to intense linearly-polarized laser pulses. The numerical method is based on the high-precision time-dependent generalized pseudospectral method and the wavelet transform as the tool for time-frequency analysis. We show that the orientation of the molecular axis with respect to the polarization of the laser field strongly affect the electron returning times and below-threshold HHG dynamics. In this study, we find that the short (long) trajectories dominate the emission of below-threshold harmonics when the molecular axis is parallel (perpendicular) to the polarization vector of the laser field.

Original languageEnglish
Title of host publicationMultiphoton Processes and Attosecond Physics - Proceedings of the 12th Int. Conference on Multiphoton Processes, ICOMP 2011 and the 3rd International Conference on Attosecond Physics, ATTO 2011
PublisherSpringer Nature
Pages247-251
Number of pages5
Volume125
ISBN (Print)9783642289477
DOIs
Publication statusPublished - 1 Jan 2012
Event12th International Conference on Multiphoton Processes, ICOMP 2011 and the 3rd International Conference on Attosecond Physics, ATTO 2011 - Sapporo, Hokkaido
Duration: 3 Jul 20118 Jul 2011

Conference

Conference12th International Conference on Multiphoton Processes, ICOMP 2011 and the 3rd International Conference on Attosecond Physics, ATTO 2011
CountryJapan
CitySapporo, Hokkaido
Period3/07/118/07/11

Scopus subject areas

  • Physics and Astronomy(all)

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