Coherent population trapping (CPT) versus electromagnetically induced transparency (EIT)

Abstract

We discuss the differences between two well-studied and related phenomena---coherent population trapping (CPT) and electromagnetically induced transparency (EIT). Many differences between the two---such as the effect of power in the beams, detuning of the beams from resonance, and the use of vapor cells filled with buffer gas---are demonstrated experimentally. The experiments are done using magnetic sublevels of the $1\to 1$ transition in the D${}_2$ line of ${}^{87}$Rb.

9 pages, 13 figures

References in corpus (4)

• Narrow absorptive resonances in a four-level atomic system
• Role of dressed-state interference in electromagnetically induced transparency
• Study of a four-level system in vee + ladder configuration
• Precise measurement of hyperfine intervals using avoided crossing of dressed states

Cited by in corpus (4)

• Two-photon resonance fluorescence of two interacting non-identical quantum emitters
• Direct spectroscopy of Rubidium using a narrow-line transition at 420 nm
• Study of CPO resonances on the intercombination line in ${}^{173}$Yb
• Control of spontaneous emission of qubits from weak to strong coupling