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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 20 — Sep. 27, 2010
  • pp: 21062–21073

Calculations of laser induced dipole-quadrupole collisional energy transfer in Sr-Ca

Zhenzhong Lu, Deying Chen, Yuanqin Xia, Rongwei Fan, and Hongying Zhang  »View Author Affiliations


Optics Express, Vol. 18, Issue 20, pp. 21062-21073 (2010)
http://dx.doi.org/10.1364/OE.18.021062


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Abstract

A three-state model for calculating the cross section of laser-induced dipole-quadrupole collisional energy transfer in Sr-Ca system is presented. The motion equations for the probability amplitudes of the three intermediate states are obtained. The expression of the cross section is derived. Various factors including field intensity, relative speed, system temperature which influence the collisional cross section are discussed to illustrate the features of the dipole-quadrupole laser-induced collisional energy transfer (LICET)process. Calculating results show that the peak of the LICET profiles moves to the red, the tuning range of the profiles obviously becomes narrower with the laser field intensity increasing and a cross section of 1.25 × 10−13cm2 at a laser intensity of 8.29 × 109W/cm2 is obtained. Our results indicate that dipole-quadrupole LICET process can be the effective way to transfer energy selectively from a storage state of arbitrary parity to a target state of arbitrary parity.

© 2010 OSA

OCIS Codes
(020.3690) Atomic and molecular physics : Line shapes and shifts
(190.0190) Nonlinear optics : Nonlinear optics

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: June 25, 2010
Revised Manuscript: September 8, 2010
Manuscript Accepted: September 8, 2010
Published: September 21, 2010

Citation
Zhenzhong Lu, Deying Chen, Yuanqin Xia, Rongwei Fan, and Hongying Zhang, "Calculations of laser induced dipole-quadrupole collisional energy transfer in Sr-Ca," Opt. Express 18, 21062-21073 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-20-21062


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