Eur. Phys. J. D (2015) 69: 113
https://doi.org/10.1140/epjd/e2015-50893-1

Regular Article

Numerical simulation of dense cesium vapor emission and absorption spectra

Institute of Physics, Bijenička cesta 46, 10000 Zagreb, Croatia

^a e-mail: horvatic@ifs.hr

Received: 17 December 2014
Received in final form: 12 March 2015
Published online: 21 April 2015

Abstract

A recent ab initio calculation of Cs₂ electronic potential curves and electronic transition dipole moments provided us with an input for the numerical simulation of Cs₂ spectra. We investigated the red and near-infrared (600–1300 nm) absorption and emission spectrum of a dense cesium vapor for temperatures within the range 600–1500 K, using a novel time-efficient “semiquantum” approximation (SQA). Our study suggests that the SQA numerical simulation of the spectrum can be an efficient tool for the diagnostics of hot and dense dimer vapors. It also enables modelling of dense alkali vapor light sources.