Laser Induced Quadrupole-Dipole Collisional Energy Transfer in Ca-Sr

• Authors: Z. Lu , Y. Sun , L. Ma , J. Liu
• Languages of publication: EN

Abstracts

EN

A laser induced quadrupole-dipole collisional energy transfer system of Ca-Sr is proposed and the four-state quadrupole-dipole laser induced collisional energy transfer model is presented. The excitation spectrum calculated for the Ca-Sr system is characterized by a doublet structure and a width which is about twice wider than the dipole-dipole laser induced collisional energy transfer results. Calculating results show that the full width at half peak of the profile becomes larger and the quasi-static wing tends to be a broad flat as the field intensity increases, which are different from the reported results of dipole-dipole laser induced collisional energy transfer processes, dipole-quadrupole and quadrupole-quadrupole. A cross-section of 2.48× 10^{-14} cm^{2} at a laser field intensity of 5.21× 10^{7} V/m is obtained which indicates that the quadrupole-dipole process can be an effective way to transfer energy selectively.

Keywords

EN

32.70.Jz; 34.50.-s

Discipline

• 34.50.-s: Scattering of atoms and molecules
• 32.70.Jz: Line shapes, widths, and shifts

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 6
• Pages: 1620-1624

Dates

published

2015-06

received

2015-02-04

(unknown)

2015-04-24

Contributors

author

Z. Lu

• School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China

author

Y. Sun

• School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China

author

L. Ma

• School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China

author

J. Liu

• School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China

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Identifiers

DOI

10.12693/APhysPolA.127.1620