PHOTOEXCITATION OF ATOM WITH ULTRASHORT LASER PULSES
Dai Chang-jian (戴长建)a, Chen Zi-dong (陈子栋)ab
a Department of Physics, Zhejiang University, Hangzhou 310027, China; b Department of Physics, Shaoxing College of Arts and Sciences, Shaoxing 312000, China
Abstract The uncoupled basis set is used to describe the interaction between the ultrashort pulses and the Na atom. Several polarization configurations of laser pulses have been investigated, which produce different effects on the two-step photoexcitation process. The study shows that the final states of the transitions driven by ultrashort laser pulses have a strong dependence on the laser polarization configuration. A comparison of the two different basis sets shows that the uncoupled basis set may provide more information than the coupled basis set, such as angular distribution of the atom in the final states of the transitions.
Received: 04 September 2000
Revised: 15 November 2000
Accepted manuscript online:
(Beam characteristics: profile, intensity, and power; spatial pattern formation)
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 19774048), the Inertial Confinement Fusion Foundation of the China National High Technology Development Program, and the Natural Science Foundation of Zhejiang Province, Chin
Cite this article:
Dai Chang-jian (戴长建), Chen Zi-dong (陈子栋) PHOTOEXCITATION OF ATOM WITH ULTRASHORT LASER PULSES 2001 Chinese Physics 10 403
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