中国物理B ›› 2011, Vol. 20 ›› Issue (6): 63202-063202.doi: 10.1088/1674-1056/20/6/063202
• ATOMIC AND MOLECULAR PHYSICS • 上一篇 下一篇
鲁振中, 陈德应, 樊荣伟, 夏元钦
Lu Zhen-Zhong (鲁振中), Chen De-Ying (陈德应), Fan Rong-Wei (樊荣伟), Xia Yuan-Qin (夏元钦)
摘要: By considering the relative velocity distribution function and multipole expansion interaction Hamiltonian, a three-state model for calculating the cross section of laser-induced quadrupole-quadrupole collisional energy transfer is presented. Calculated results in Xe-Kr system show that in the present system, the laser-induced collision process occurs for ~4 ps, which is much shorter than the dipole-dipole laser-induced collisional energy transfer (LICET) process. The spectrum of laser-induced quadrupole-quadrupole collisional energy transfer in Xe-Kr system has wider tunable range in an order of magnitude than the dipole-dipole LICET spectra. The peak cross section decreases and moves to the quasi-static wing with increasing temperature and the full width at half peak of the profile becomes larger as the system temperature increases.
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