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Numerical simulation of dense cesium vapor emission and absorption spectra

Recent ab initio calculation of Cs2 electronic potential curves and electronic transition dipole moments (A. Allouche and M. Aubert-Frécon 2012) provided us with a starting point for a very accurate Cs2 spectra numerical simulation. We investigated the red and near-infrared (600-1200 nm) absorption and emission spectrum of dense, weakly ionized cesium plasma at high temperatures (600-1500 K). Our study showed that this “semi-quantum” numerical spectrum simulation can be a very efficient tool for the diagnostics of hot and dense dimer vapors. It also enabled us to perform modelling of dense alkali vapor light sources.

esium; plasma; emission and absorption spectra; numerical simulation

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