Jiaqi Yang, Jiadong Liu, Tao Liu. Influence of Ground State Hyperfine Pumping on Light-Induced Drift Velocity of Atoms[J]. Acta Optica Sinica, 2021, 41(10): 1002002
- Acta Optica Sinica
- Vol. 41, Issue 10, 1002002 (2021)
Fig. 1. Energy level diagram of 85Rb
Fig. 2. Energy level diagram of 87Rb
Fig. 3. Simplified energy level structure of atoms
Fig. 4. Drift velocity of 85Rb or 87Rb versus excitation laser frequency detuning when I0=10 W·cm-2 and Δf=50 MHz
Fig. 5. Atomic population at each energy level of 85Rb versus laser frequency detuning when I0=10 W·cm-2 and Δf=50 MHz
Fig. 6. Drift velocity versus laser frequency detuning under different ground state hyperfine splitting energy differences when I0=10 W·cm-2 and Δf=50 MHz. (a) 1 GHz; (b) 2 GHz; (c) 3 GHz; (d) 4 GHz
Fig. 7. Drift velocity versus laser frequency detuning under different laser power densities when Δf=50 MHz
Fig. 8. Drift velocity versus laser frequency detuning at different laser linewidths when I0=10 W·cm-2. (a) 5 MHz; (b) 100 MHz; (c) 1 GHz; (d) 1.5 GHz; (e) 2 GHz; (f) 4 GHz
Fig. 9. Light-induced drift velocity versus laser frequency detuning under different types of lasers when Δf=50 MHz. (a) Single laser, I0= 10 W·cm-2; (b) two lasers, I0= 0.1 W·cm-2; (c) two lasers, I0= 1 W·cm-2; (d) two lasers, I0= 5 W·cm-2
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Table 1.
at maximum drift velocity
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