Electromagnetically induced transparency without a Doppler background in a multilevel ladder-type cesium atomic system

Baodong Yang, Jing Gao, Tiancai Zhang, and Junmin Wang

Phys. Rev. A 83, 013818 – Published 21 January 2011

Abstract

We present an investigation of electromagnetically induced transparency (EIT) without Doppler background due to a locked probe laser. The EIT is theoretically studied based on a multilevel ladder-type cesium atomic system 6 $S_{1 / 2}$ –6 $P_{3 / 2}$ –8 $S_{1 / 2}$ in a room-temperature vapor cell. The experimental results agree with the theoretical calculations. Compared with the traditional EIT spectra with a Doppler profile limiting the spectral resolution for keeping the coupling laser locked and scanning the probe laser, these EIT spectra with the probe laser locked and the coupling laser scanned have a flat background, which seem be of great benefit for applications such as the measurement of hyperfine intervals between excited states, the study of highly excited Rydberg states, laser-frequency stabilization, etc.

Received 29 September 2010

DOI:https://doi.org/10.1103/PhysRevA.83.013818

Authors & Affiliations

Baodong Yang^1,2, Jing Gao¹, Tiancai Zhang¹, and Junmin Wang^1,*

¹State Key Laboratory of Quantum Optics and Quantum Optics Devices, and Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, P. R. China
²College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, P. R. China

^*Author to whom correspondence should be addressed, email: wwjjmm@sxu.edu.cn

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Vol. 83, Iss. 1 — January 2011

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