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Phys. Rev. Lett. 99, 187802 (2007) [4 pages]

Resonance-Enhanced Optical Reorientation of Molecules in Liquids via Intermolecular Interaction

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Thai V. Truong* and Y. R. Shen
Department of Physics, University of California, Berkeley, California 94720, USA

Received 16 August 2007; published 2 November 2007

Enhanced optical reorientation of molecules in a pure liquid was observed when the optical field was in resonance with the molecular electronic transition. The enhancement comes from photoinduced change in intermolecular interaction. Experimental results agree well with the time-dependent theory based on a mean-field model of intermolecular interaction.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.187802
DOI:
10.1103/PhysRevLett.99.187802
PACS:
42.70.Df, 42.65.An, 42.65.Re, 61.30.Gd

*Present address: Biological Imaging Center, Beckman Institute, California Institute of Technology, Pasadena, CA 91125, USA.

To whom correspondence should be addressed.

yrshen@calmail.berkeley.edu