Experimental Investigation of the Initial-State Alignment Dependence in the Energy Pooling Process: Ca(4s4p3P1)+Ca(4s4p3P1)-->Ca(4s4p1P1)+Ca(4s2)

Published

September 1, 1998

Author(s)

Harold V. Parks, E M. Spain, J E. Smedley, S R. Leone

Abstract

A pulsed laser investigation is performed to study the detailed efforts of electronic angular momentum alignment on the cross section for the energy transfer process: Ca(4s4p₃P₁)+Ca(4s4p³P₁)>Ca(4s4p¹P₁)+Ca(4s²). A uniform magnetic field imposed by a set of Helmholtz coils is used to systematically precess the initial state orbitals with a well-defined period, allowing different alignments to be sampled at different time delays after the pulsed laser excites and aligns the Ca(4s4p³P₁) states. The polarization effects in this collison for two atoms that are both in the m₁=1 (or-1) substate, where the quantization axis is taken to be along the relative velocity vector of the collision. The initial m-sublevel dependence of this three-vector correlation process can be completely described with eight fundamental parameters, five of which are accurately obtained, In addition, the coarse energy dependence of these parameters is deduced.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

58

Issue

No. 3

Pub Type

Journals

Keywords

alignment, atomic collisions, energy pooling, polarization

Citation

Parks, H. , Spain, E. , Smedley, J. and Leone, S. (1998), Experimental Investigation of the Initial-State Alignment Dependence in the Energy Pooling Process: Ca(4s4p³P₁)+Ca(4s4p³P₁)-->Ca(4s4p¹P₁)+Ca(4s²), Physical Review A (Atomic, Molecular and Optical Physics) (Accessed November 8, 2025)