Feng Guo, Dehuan Kong, Qiang Zhang, Yebing Wang, Hong Chang. System Development and Clock Transition Spectroscopy Detection of Transportable 87Sr Optical Clock[J]. Acta Optica Sinica, 2020, 40(9): 0902001
- Acta Optica Sinica
- Vol. 40, Issue 9, 0902001 (2020)
Fig. 1. Energy level structure involved in 87Sr optical clock
Fig. 2. Physical system of transportable optical clock. (a) Physical drawing; (b) three-dimensional drawing of MOT cavity and residual magnetic compensation coils
Fig. 3. Atomic clouds at different experimental stages. (a) Blue MOT atomic cloud after first stage of cooling; (b) red MOT atomic cloud after second stage of cooling; (c) separation between atoms not loaded into lattice and atomic cloud in lattice; (d) atomic cloud in lattice
Fig. 4. Atomic lifetime in one-dimensional optical lattice
Fig. 5. Direction of each beam in MOT cavity
Fig. 6. Clock transition spectra. (a) Spectrum with distinguishable sidebands; (b) degenerate spectrum with narrow linewidth
Fig. 7. Spin-polarized spectrum
Fig. 8. Rabi-flopping curve
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