%0 Journal Article
%T Resonance radiation trapping in Ca, Sr, Ba and Hg ion lasers<br>钙、锶、钡和汞离子激光中的共振辐射俘获效应
%A Mao Bang-Ning
%A Pan Bai-Liang
%A Chen Li
%A Wang Yu-Bo
%A Wang Li-Min
%A <br>毛邦宁
%A 潘佰良
%A 陈立
%A 王煜博
%A 王丽敏
%J 物理学报
%D 2007
%I 
%X According to Holstein's theory about radiation trapping effect, the influence of gas temperature and ground-state population density on the effective lifetime of the resonance level is discussed. The results show that the ground-state population density is the dominating factor in the radiation trapping effect. The threshold parameters of radiatoin trapping have been calculated for seven resonance metastable transition laser lines in Ca+, Sr+, Ba+ and Hg+ in different ionization ratios. The threshold temperature of radiation trapping was found to be consistent with the initial lasing temperature for the ionization ratio of 5%, which matches the ionization ratio of 3% to 5% observed in experiment. This consistency reveals that the threshold condition of radiation trapping effect is an important factor for population inversion in lastrs based on the ionic resonance to metastable transition.
%K radiation trapping
%K ionic resonance to metastable transition laser
%K threshold temperature<br>共振辐射俘获
%K 离子共振-亚稳跃迁激光
%K 阈值温度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=EAD40C6ED93E2B7E&yid=A732AF04DDA03BB3&vid=014B591DF029732F&iid=F3090AE9B60B7ED1&sid=D5D3F85981903188&eid=EE17E26D8568963C&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=20