Polarization-dependent spectra in the photoassociative ionization of cold atoms in a bright sodium beam

被引：6

作者：

Ramirez-Serrano, J ^{[1
]}

DeGraffenreid, W ^{[1
]}

Weiner, J ^{[1
]}

机构：

[1] Univ Maryland, Lab Atom Mol & Opt Sci & Engn, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW A | 2002年 / 65卷 / 05期

关键词：

Atomic physics - Charge coupled devices - Cooling - Doppler effect - Fluorescence - Kinematics - Laser beams - Light polarization - Magnetic field effects - Magnetic resonance - Magnetic shielding - Magnetooptical effects - Optical collimators - Photoionization - Sodium - Spectrum analysis;

D O I：

10.1103/PhysRevA.65.052719

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report measurements of cold photoassociative ionization (PAI) spectra obtained from collisions within a slow, bright Na atomic beam. A high-brightness atom flux, obtained by optical cooling and focusing of the atom beam, permits a high degree of alignment and orientation of binary collisions with respect to the laboratory atom-beam axis. The results reveal features of PAI spectra not accessible in conventional magneto-optical trap studies. We take advantage of this high degree of alignment to selectively excite autoionizing doubly excited states of specific symmetry.

引用

页码：527191 / 527198

页数：8

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