Two-color cesium magneto-optical trap with a ladder-type atomic system

Baodong Yang; Jie Wang; Junmin Wang

doi:doi:10.3788/COL201614.040201

Chinese Optics Letters, 2016, 14 (4): 040201, Published Online: Aug. 6, 2018

Two-color cesium magneto-optical trap with a ladder-type atomic system Download： 1042次

Baodong Yang ^1,2,**Jie Wang ¹Junmin Wang ^1,*

Author Affiliations

¹ State Key Laboratory of Quantum Optics and Quantum Optics Devices (Shanxi University), and Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China

² College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China

Figures & Tables

Fig. 1. (a) Schematic diagram of the laser beam arrangement for the two-color Cs MOT. The values of σ± are specified with respect to the positive x-, y-, and z-axes, and I is the electric current of the anti-Helmholtz coils. (b) Simplified diagram of energy levels and related transitions.

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Fig. 2. Peak fluorescence intensity of the trapped atoms versus two-photon frequency detuning δ2 under the condition of (a) ΔP=−10 and (b) −5 MHz. The vertical error bars signify the standard deviation of several measurements, and the horizontal error bars denote the uncertainty of the frequency fluctuation with ∼±1 MHz after laser locking. The inset in (a) gives a typical fluorescence picture of a cold atoms cloud at δ2=−9 MHz by a charge-coupled device camera.

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Fig. 3. Peak fluorescence intensity of trapped atoms versus intensity of (a) 852.3 nm cooling laser and (b) repumping laser. The error bars signify the standard deviation of several measurements.

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Fig. 4. Peak fluorescence intensity of trapped atoms versus intensity of 794.6 nm cooling laser for the two-photon detuning (a) δ2=−6.5 and (b) +8.8 MHz. The error bars signify the standard deviation of several measurements.

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Baodong Yang, Jie Wang, Junmin Wang. Two-color cesium magneto-optical trap with a ladder-type atomic system[J]. Chinese Optics Letters, 2016, 14(4): 040201.

Two-color cesium magneto-optical trap with a ladder-type atomic system Download： 1042次

Fig. 1. (a) Schematic diagram of the laser beam arrangement for the two-color Cs MOT. The values of σ± are specified with respect to the positive x-, y-, and z-axes, and I is the electric current of the anti-Helmholtz coils. (b) Simplified diagram of energy levels and related transitions.

Fig. 3. Peak fluorescence intensity of trapped atoms versus intensity of (a) 852.3 nm cooling laser and (b) repumping laser. The error bars signify the standard deviation of several measurements.

Fig. 4. Peak fluorescence intensity of trapped atoms versus intensity of 794.6 nm cooling laser for the two-photon detuning (a) δ2=−6.5 and (b) +8.8 MHz. The error bars signify the standard deviation of several measurements.

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Two-color cesium magneto-optical trap with a ladder-type atomic system Download： 1042次

Fig. 1. (a) Schematic diagram of the laser beam arrangement for the two-color Cs MOT. The values of σ± are specified with respect to the positive x-, y-, and z-axes, and I is the electric current of the anti-Helmholtz coils. (b) Simplified diagram of energy levels and related transitions.

Fig. 3. Peak fluorescence intensity of trapped atoms versus intensity of (a) 852.3 nm cooling laser and (b) repumping laser. The error bars signify the standard deviation of several measurements.

Fig. 4. Peak fluorescence intensity of trapped atoms versus intensity of 794.6 nm cooling laser for the two-photon detuning (a) δ2=−6.5 and (b) +8.8 MHz. The error bars signify the standard deviation of several measurements.

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