Rotational-State-Dependent Dispersion of Molecules by Pulsed Optical Standing Waves

Xing Nan Sun, Lee Yeong Kim, Bum Suk Zhao (조범석), and Doo Soo Chung
Phys. Rev. Lett. 115, 223001 – Published 24 November 2015
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Abstract

We report on the rotational-state-dependent, transverse acceleration of CS2 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 80m/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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  • Received 14 July 2015

DOI:https://doi.org/10.1103/PhysRevLett.115.223001

© 2015 American Physical Society

Authors & Affiliations

Xing Nan Sun1,2, Lee Yeong Kim3, Bum Suk Zhao (조범석)2,3,*, and Doo Soo Chung1,*

  • 1Department of Chemistry, Seoul National University, Seoul, Korea
  • 2Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan, Korea
  • 3Department of Physics, Ulsan National Institute of Science and Technology, Ulsan, Korea

  • *Corresponding authors. zhao@unist.ac.kr

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Vol. 115, Iss. 22 — 27 November 2015

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