Comparison between transparencies of $5S_{1/2}\text{-}5P_{3/2}\text{-}4D_{5/2}$ and $5S_{1/2}\text{-}5P_{3/2}\text{-}5D_{5/2}$ transitions of ${}^{87}\mathrm{Rb}$ atoms

Abstract

We have experimentally and theoretically studied the causes of the transparency spectra of the $5S_{1/2}\text{-}5P_{3/2}\text{-}4D_{5/2}$ and $5S_{1/2}\text{-}5P_{3/2}\text{-}5D_{5/2}$ transitions of ${}^{87}\mathrm{Rb}$ atoms. Although, the two-photon resonance of the $5S_{1/2}\text{-}5P_{3/2}\text{-}4D_{5/2}$ transition was not Doppler-free in an Rb vapor, we observed the transparency phenomenon in this transition. The main cause of the transparency of the $5S_{1/2}\text{-}5P_{3/2}\text{-}4D_{5/2}$ transition was double-resonance optical pumping (DROP) due to two-step excitation, and that of the $5S_{1/2}\text{-}5P_{3/2}\text{-}5D_{5/2}$ transition was DROP and electromagnetically induced transparency due to two-photon coherence. We confirmed the experimental results with theoretical results calculated using the density matrix equations considering all the degenerate magnetic sublevels of both transitions of the ${}^{87}\mathrm{Rb}$ atoms.

© 2012 Optical Society of America

Double resonance optical pumping effects in electromagnetically induced transparency

H. S. Moon, L. Lee, and J. B. Kim
Opt. Express 16(16) 12163-12170 (2008)

Relationship between two- and three-photon coherence in a ladder-type atomic system

Yoon-Seok Lee, Heung-Ryoul Noh, and Han Seb Moon
Opt. Express 23(3) 2999-3009 (2015)

Frequency stabilization of a 1.3 μm laser diode using double resonance optical pumping in the 5P_3/2-6S_1/2 transition of Rb atoms

Han Seb Moon
Appl. Opt. 47(8) 1097-1102 (2008)

Atomic coherences of on-resonant and off-resonant two-photon absorptions in a ladder-type atomic system

Han Seb Moon and Heung-Ryoul Noh
J. Opt. Soc. Am. B 31(5) 1217-1222 (2014)

Resonant two-photon absorption and electromagnetically induced transparency in open ladder-type atomic system

Han Seb Moon and Heung-Ryoul Noh
Opt. Express 21(6) 7447-7455 (2013)