Measurement of hyperfine splitting and determination of hyperfine structure constant of cesium 8S1/2 state by using of ladder-type EIT

Jie Wang; Junmin Wang; Huifeng Liu; Baodong Yang; Jun He

doi:10.1117/12.2016842

6 May 2013 Measurement of hyperfine splitting and determination of hyperfine structure constant of cesium 8S_1/2 state by using of ladder-type EIT

Jie Wang, Junmin Wang, Huifeng Liu, Baodong Yang, Jun He

Author Affiliations +

Proceedings Volume 8773, Photon Counting Applications IV; and Quantum Optics and Quantum Information Transfer and Processing; 877311 (2013) https://doi.org/10.1117/12.2016842
Event: SPIE Optics + Optoelectronics, 2013, Prague, Czech Republic

Abstract

The narrow electromagnetically-induced transparency (EIT) resonance peaks are observed with two low-power counter-propagating diode lasers in cesium (Cs) 6S_1/2 - 6P_1/2 - 8S_1/2 ladder-type atomic system. To precisely determine the centers of resonance peaks, multiple background-free EIT signals are achieved using a novel scanning scheme in which the coupling laser driving Cs 6P_1/2 - 8S_1/2 transition is scanned and the probe laser driving Cs 6S_1/2 – 6P_1/2 is frequency locked. A temperature-stabilized fiber-pigtailed waveguide-type phase electro-optical modulator (EOM) and a stable confocal Fabry-Perot cavity are used as a precise frequency marker to measure the hyperfine splitting of Cs 8S_1/2 state. The impact of the external magnetic field on the measurement is also investigated. Furthermore, the hyperfine structure constant (here it is the hyperfine magnetic dipole constant, A) of Cs 8S_1/2 state is determined to be A = 219.06 MHz ± 0.12 MHz based on the measured hyperfine splitting (Δ_hfs = 876.24 MHz ± 0.50 MHz).

Citation Download Citation

Jie Wang, Junmin Wang, Huifeng Liu, Baodong Yang, and Jun He "Measurement of hyperfine splitting and determination of hyperfine structure constant of cesium 8S_1/2 state by using of ladder-type EIT", Proc. SPIE 8773, Photon Counting Applications IV; and Quantum Optics and Quantum Information Transfer and Processing, 877311 (6 May 2013); https://doi.org/10.1117/12.2016842

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