Rotational-State-Dependent Dispersion of Molecules by Pulsed Optical Standing Waves
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- Rotational-State-Dependent Dispersion of Molecules by Pulsed Optical Standing Waves
- Sun, Xing Nan; Kim, Lee Yeong; Zhao, Bum Suk; Chung, Doo Soo
- Issue Date
- AMER PHYSICAL SOC
- PHYSICAL REVIEW LETTERS, v.115, no.22, pp.223001
- We report on the rotational-state-dependent, transverse acceleration of CS 2 molecules affected by pulsed optical standing waves. The steep gradient of the standing wave potential imparts far stronger dipole forces on the molecules than propagating pulses do. Moreover, large changes in the transverse velocities (i.e., up to 80 m/s) obtained with the standing waves are well reproduced in numerical simulations using the effective polarizability that depends on the molecular rotational states. Our analysis based on the rotational-state-dependent effective polarizability can therefore serve as a basis for developing a new technique of state selection for both polar and nonpolar molecules.
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