Raman spectroscopy of the interaction of molecules (atoms) with the surface of a transparent solid
Abstract
Raman spectroscopy is a powerful method for studying the interaction of atoms and molecules with the surface of solid materials. This method provides information about the structure, chemical activity, and physical properties of the surface at the molecular level. The study examined the spectral properties of xenon atoms on the surface of quartz glass under the influence of monochromatic coherent resonant radiation. The main results of the experimental investigation of the processes involving the interaction of xenon atoms with the surface of a transparent solid using Raman spectroscopy are presented, allowing us to literally observe the atomic structure of xenon under laser radiation. Xenon, being an inert gas, does not exhibit noticeable behavior under normal conditions. However, under the interaction with laser radiation, vibrational states of the xenon atom can occur due to its interaction with pore walls. This interaction with the surface leads to characteristic changes in its spectra. In this case, the frequency shifts of the Stokes and anti-Stokes bands, being less than 100 cm^-1, indicate the relatively weak force of such interaction and corresponding changes in the adsorption potential of the atoms. The significance of this research also lies in the determination of molecular constants, which are absent in the gaseous state of xenon, by using photo-stimulated deepening of the adsorption potential of adsorbed atoms.
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