JIA SUO-TANG (贾锁堂)a, QIN LI-JUAN (秦莉娟)a, QIAN ZU-LIANG (钱祖良)a, WANG ZU-GENG (王祖赓)a, WANG GANG (王钢)b, ZHOU GUO-SHENG (周国生)b
a Department of Physics, Bast China Normal University, Shanghai 200062, China; b Department of Electronics Information Technology, Shanxi University, Taiyuan 030006, China
Abstract The competition effects among the processes that occur in the two-photon 3S→4D excitation of Na atom in Na-Na2 vapour mixture are observed: such as atomic ionization, optical-pumped stimulated radiation, four-wave frequency mixing and molecular stimulated diffuse-band radiation, etc. The dip at the two-photon resonance in the excitation spectrum for the diffuse-band radiation under high temperature condition is interpreted as the suppression of population in 4D state.
Received: 13 December 1994
Revised: 16 December 1995
Accepted manuscript online:
PACS:
33.80.Eh
(Autoionization, photoionization, and photodetachment)
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