Chinese Physics

Experimental observation of pump–probe spectra of caesium D 2 line with a vapour cell

Yanhua Wang, Yang Hai-Jing, Tiancai Zhang, Junmin Wang

Published May 3, 2005• 2 citations

Abstract

Pump?probe spectra of caesium D2 line are experimentally investigated in a Cs atomic vapour cell with co-propagating orthogonal linearly-polarized pump and probe laser beams. Absorption-reduction dips duo to electromagnetically induced transparency (EIT) in multi-?-type Zeeman sublevels of 6 S1/2 F=3?6 P3/2 F'=2 hyperfine transition and absorption-enhanced peaks due to electromagnetically induced absorption (EIA) in 6 S1/2 F=4?6 P3/2 F'=5 hyperfine transition are demonstrated. With detuned pump beam abnormal sign-reversed signals inside the EIT dip and the EIA peak are clearly observed.

DOI: 10.1088/1009-1963/14/6/011

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