Laser-induced desorption of molecules from a dielectric surface due to an energy transfer between adsorbed molecules

A. S. Solodukhin; C.J .S. M. Simpson; M. Towrie

doi:10.1117/12.242171

10 June 1996 Laser-induced desorption of molecules from a dielectric surface due to an energy transfer between adsorbed molecules

A. S. Solodukhin, C.J .S. M. Simpson, M. Towrie

Author Affiliations +

Proceedings Volume 2802, Laser Chemistry, Biophysics, and Biomedicine; (1996) https://doi.org/10.1117/12.242171
Event: International Conference on Coherent and Nonlinear Optics, 1995, St. Petersburg, Russian Federation

Abstract

We have established that an energy transfer occurs between NO and co-adsorbed CO and N₂ molecules following the photoexcitation of (NO)₂ dimers adsorbed on an MgF₂ substrate. The NO is desorbed in the (v equals 1) states. The photoexcitation of (NO)₂ dimers with mixture of CO or N₂ leads to the desorbtion of NO the co-adsorbed species. Using (2 + 1) REMPI we have found that the CO is desorbed in the (v equals 0) with a rotational temperature of 380 +/- 30 K. The desorbed N₂ and CO have the translational energies lower than of NO.

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A. S. Solodukhin, C.J .S. M. Simpson, and M. Towrie "Laser-induced desorption of molecules from a dielectric surface due to an energy transfer between adsorbed molecules", Proc. SPIE 2802, Laser Chemistry, Biophysics, and Biomedicine, (10 June 1996); https://doi.org/10.1117/12.242171

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