Open AccessA kinetics model for metastable-metastable transition laser in Sr atom vapor
Author(s) -
Gang Chen,
Feng Jian,
Pan Bai-Liang,
Zhixin Yao
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.3149
Subject(s) - metastability , atomic physics , laser , excited state , afterglow , atom (system on chip) , kinetics , ion , materials science , physics , electron , optics , nuclear physics , gamma ray burst , quantum mechanics , astronomy , computer science , embedded system
A self-consistent physical model has been developed to simulate the kinetics in a high-repetition frequency, discharge-excited Sr atom metastable-metastable transition laser. The main pumping mechanism for each upper laser level has bee n clarified: the upper level of 301μm is pumped mainly by the spontaneous and stimulated emissions from the higher levels in early discharge pulses, while th e upper levels of the other 3 laser lines are chiefly populated through the reco mbination between the univalent Sr ions and electrons in the afterglow, and the collision mixing between neutral He and Sr atoms in compound triplet. The quant itative results predicted by the model are found to be in good agreement with th e previous experimental results. Furthermore, the temporal behavior of each lase r pulse is explained successfully by the simulation results.