Fig. 1. Formation principle of optical lattice

Fig. 2. Triangular lattice. (a) Schematic of lattice optical path; (b) potential energy of lattice; (c) atomic momentum distribution in lattice

Fig. 3. Light path for triangular lattice

Fig. 4. Loading time sequences for triangular lattice. (a) Adiabatic loading; (b) diabatic loading

Fig. 5. Comparison between adiabatic and diabatic processes

Fig. 6. Experimental results of different phase noises

Fig. 7. Atomic contrast ratio corresponding to different phase noises

Fig. 8. Test chart of laser phase-locking system

Fig. 9. Peak wave power and total power when phase is unlocked or locked. (a) Unlocked; (b) locked