A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is
We observe transformation of the electromagnetically induced transparency (EIT) resonance into the absorption resonance in a Λ interaction configuration in a cell filled with ^87Rb and a buffer gas. This transformation occurs as a one-photon detuning of the coupling fields is varied from the atomic transition. No such absorption resonance is found in the absence of a buffer gas. The width of the absorption resonance is several times smaller than the width of the EIT resonance, and the changesdoi:10.1103/physreva.70.033806 fatcat:pgwybwrgxjfb5csey5pqhbylay