Continuous Transfer Of Angular Momentum From The Light To A Nematic Liquid Crystal In The Mesophase

E. Santamato; B. Daino; M. Romagnoli; M. Settembre

doi:10.1117/12.937070

10 July 1987 Continuous Transfer Of Angular Momentum From The Light To A Nematic Liquid Crystal In The Mesophase

E. Santamato, B. Daino, M. Romagnoli, M. Settembre

Proceedings Volume 0701, 1986 European Conf on Optics, Optical Systems and Applications; (1987) https://doi.org/10.1117/12.937070
Event: 1986 International European Conference on Optics, Optical Systems, and Applications, 1986, Florence, Italy

Abstract

It is experimentally demonstrated that a circularly polarized laser beam normally incident on a homeotropic aligned nematic film can transfer continuously angular momentum to the sample. The angular momentum transfer is evidentiated by a collective precession of the liquid crystal molecules along the propagation direction of the incident beam. The effect is observed only if the laser intensity is above the threshold for the optical Freedericksz transition.

Citation Download Citation

E. Santamato, B. Daino, M. Romagnoli, and M. Settembre "Continuous Transfer Of Angular Momentum From The Light To A Nematic Liquid Crystal In The Mesophase", Proc. SPIE 0701, 1986 European Conf on Optics, Optical Systems and Applications, (10 July 1987); https://doi.org/10.1117/12.937070

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