Measurements and applications of brute force orientation and alignment

Hongzhi Li; Karen Franks; Rebecca Hanson; Wei Kong

doi:10.1117/12.308403

15 May 1998 Measurements and applications of brute force orientation and alignment

Hongzhi Li, Karen Franks, Rebecca Hanson, Wei Kong

Proceedings Volume 3271, Laser Techniques for State-Selected and State-to-State Chemistry IV; (1998) https://doi.org/10.1117/12.308403
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

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.

Citation Download Citation

Hongzhi Li, Karen Franks, Rebecca Hanson, and Wei Kong "Measurements and applications of brute force orientation and alignment", Proc. SPIE 3271, Laser Techniques for State-Selected and State-to-State Chemistry IV, (15 May 1998); https://doi.org/10.1117/12.308403

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