Phys. Rev. A 67, 065801 (2003) [4 pages]Contrast and linewidth of the coherent population trapping transmission hyperfine resonance line in 87Rb: Effect of optical pumpingReceived 3 February 2003; revised 31 March 2003; published 19 June 2003 Coherent population trapping is studied in 87Rb in a buffer gas. Experimental results are reported on the contrast of the field independent hyperfine resonance line and on its linewidth. A physical model, which includes an optical pumping process that traps atoms in a Zeeman sublevel of the ground state, is developed. The model explains the general behavior of the experimental observations. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.065801
DOI:
10.1103/PhysRevA.67.065801
PACS:
42.50.Gy, 32.70.Fw, 06.30.Ft
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