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https://doi.org/10.3938/NPSM.68.129
Electromagnetically Induced Transparency in the 5S$_{1/2}$-5P$_{3/2}$-4D$_{5/2}$ Transition of Cold $^{87}$Rb Atoms
New Phys.: Sae Mulli 2018; 68: 129~134
Published online January 31, 2018;  https://doi.org/10.3938/NPSM.68.129
© 2018 New Physics: Sae Mulli.

Pyeong Woo KIM, Han Seb MOON*

Department of Physics, Pusan National University, Busan 46241, Korea
Correspondence to: hsmoon@pusan.ac.kr
Received July 31, 2017; Revised October 2, 2017; Accepted November 21, 2017.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
We investigated on the three-level ladder-type electromagnetically-induced transparency (EIT) of the 5S$_{1/2}$-5P$_{3/2}$-4D$_{5/2}$ transition in a $^{87}$Rb atomic ensemble by using a magneto-optical trap (MOT). The cold atoms had a cigar-type shape due to two-dimensional MOT. When a weak probe field with a wavelength of 780 nm and a strong coupling field with a wavelength of the 1529 nm interacted with the cold $^{87}$Rb atoms, a Doppler-free ladder-type EIT signal could be observed in the 5S$_{1/2}$(F=2)- 5P$_{3/2}$(F$^\prime$=3) - 4D$_{5/2}$(F$^{\prime\prime}$=4) transition by irradiating the cold atomic ensemble with the coupling and the probe lasers. 
PACS numbers: 32.60.+i, 33.80.Wz, 32.30.-r
Keywords: Magneto-optical trap (MOT), Electromagnetically induced transparency (EIT), Stark effect


January 2018, 68 (1)
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