ISSN:
1434-6079
Keywords:
31.70.Hq
;
34.50.−s
;
82.20.Rp
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Depolarization of excited114Cd 5s5p 3 P 1 atoms induced by collisions with various molecular gases (N2, H2, D2, CO, CO2, CH4, C2H6, C2H4) has been investigated using polarized fluorescence spectroscopy. After pulsed optical excitation of the Cd 53 P 1 level with appropriately polarized light the temporal behaviour of Zeeman quantum beats has been observed showing the influence of collisional destruction of orientation and alignment. By analyzing the signal curves at different molecular gas pressures the corresponding depolarization cross sections for114Cd atoms in the 53 P 1 state have been obtained. With regard to a test of a nuclear spin decoupling model for the collisions the cross sections were compared with previously measured hyperfine structure transfer cross sections of113Cd 5s5p 3 P 1 atoms.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01437461
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