Alignment and orientation of absorbed dipole molecules

2004/04/30 by Y. Y. Liao, Ying-Yen Liao, Y. N. Chen +2 · 1 citation
Physics and Astronomy · #Advanced Fiber Laser Technologies #Laser-Matter Interactions and Applications #Spectroscopy and Quantum Chemical Studies #physics.atom-ph #physics.chem-ph #quant-ph

paper · pdf · doi:10.1103/physrevb.70.233410

published as Phys. Rev. B 70, 233410 (2004) · 4 pages, 4 figures, to appear in Phys. Rev. B (2004)

arxiv created 2004/11/10 · openalex publication_date 2004/12/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Half-cycle laser pulse is applied on an absorbed molecule to investigate its alignment and orientation behavior. Crossover from field-free to hindered rotation motion is observed by varying the angel of hindrance of potential well. At small hindered angle, both alignment and orientation show sinusoidal-like behavior because of the suppression of higher excited states. However, mean orientation decreases monotonically as the hindered angle is increased, while mean alignment displays a minimum point at certain hindered angle. The reason is attributed to the symmetry of wave function and can be explained well by analyzing the coefficients of eigenstates.

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• Effects of orientation and alignment in high-order harmonic generation and above-threshold ionization

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