Light-induced nucleation and optical absorption in cesium vapor

Autor:	S. Yu. Kazitsyna, S. D. Baranovskii, Hermann Uchtmann, M. M. Rudek, Friedrich Hensel
Rok vydání:	2000
Předmět:	Chemistry Nucleation General Physics and Astronomy chemistry.chemical_element Spectral line Ion Caesium Ionization Physics::Atomic and Molecular Clusters Physics::Atomic Physics Physical and Theoretical Chemistry Diffusion (business) Atomic physics Absorption (electromagnetic radiation) Excitation
Zdroj:	The Journal of Chemical Physics. 113:4171-4178
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.1288175
Popis:	The first experimental study of the spectral dependence of the nucleation of cesium vapor caused by light absorption is carried out in a diffusion cloud chamber. The spectral dependence of the nucleation rate is compared with the absorption and ionization spectra of cesium vapor. The results evidence that the observed structure in the nucleation spectrum at photon energies above the ionization threshold is correlated to the light-induced ionization of cesium dimers Cs2+. At lower photon energies light-induced nucleation can be either due to generation of ions by direct ionization of cesium clusters, to various two-step ionization processes, or to optical excitation of cesium atoms. The spectral dependence of the nucleation rate provides a new and powerful tool to study ionization spectra of metal vapors. In addition to results obtained by conventional methods a more consolidated insight into energy levels of atoms and clusters under equilibrium conditions is possible.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9f210b104a1357b78552010a2ed94518 https://doi.org/10.1063/1.1288175 Zobrazit plný text záznamu