Alignment dependence of high-order harmonic generation from N{sub 2} and O{sub 2} molecules in intense laser fields

Journal Article · Thu Sep 15 00:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.72.033412· OSTI ID:20718581

Xiaoxin, Zhou ^[1]; Tong, X M; Zhao, Z X; Lin, C D ^[1]

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1. J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506 (United States)

The strong field approximation is used to investigate the harmonic generation of aligned N{sub 2} and O{sub 2} molecules. It is shown that the angular dependence of the yields of high-order harmonic generation from N{sub 2} and O{sub 2} molecules are different, which can be attributed to the orbital symmetry of the outmost electrons. The theory is applied to study the angular dependence of harmonic generation from recent pump-probe experiments where the pump pulse was used to produce the time-dependent partial alignment of molecules and the probe pulse was used to generate high-order harmonics. Good agreement with the experiments was found.

• OSTI ID: 20718581
• Journal Information: Physical Review. A, Vol. 72, Issue 3; Other Information: DOI: 10.1103/PhysRevA.72.033412; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ALIGNMENT
ELECTRONS
HARMONIC GENERATION
HARMONICS
LASER RADIATION
MOLECULES
NITROGEN
ORIENTATION
OXYGEN
PHOTON-MOLECULE COLLISIONS
PULSES
SYMMETRY
TIME DEPENDENCE