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Proceedings Paper

Measurements and applications of brute force orientation and alignment
Author(s): Hongzhi Li; Karen Franks; Rebecca Hanson; Wei Kong
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Paper Abstract

Theoretical and experimental aspects of brute force orientation in pyridazine and ICN are discussed. Using wave functions of symmetric tops as basis functions, Stark effect of the orientation field on energy levels, molecular axes, and electronic transitions are calculated. The obtained results are in qualitative agreement with experimental observations. Resonantly enhanced multiphoton ionization of pyridazine demonstrated enhancement of 40 percent in overall ionization yield as the polarization direction of the resonant laser was changed form parallel to perpendicular to the orientation field. At 250 and 266 nm, photodissociation of ICN is dominated by a parallel. Transition, and the yield of I* was enhanced as the laser was polarized parallel to the orientation field. These result demonstrate the feasibility of brute force orientation and have laid the foundation for potential applications of this technique in studies of complex systems.

Paper Details

Date Published: 15 May 1998
PDF: 9 pages
Proc. SPIE 3271, Laser Techniques for State-Selected and State-to-State Chemistry IV, (15 May 1998); doi: 10.1117/12.308403
Show Author Affiliations
Hongzhi Li, Oregon State Univ. (United States)
Karen Franks, Oregon State Univ. (United States)
Rebecca Hanson, Oregon State Univ. (United States)
Wei Kong, Oregon State Univ. (United States)

Published in SPIE Proceedings Vol. 3271:
Laser Techniques for State-Selected and State-to-State Chemistry IV
John W. Hepburn; Robert E. Continetti; Mark A. Johnson, Editor(s)

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