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Jánossy I. Electromagnetic torque and force in axially symmetric liquid-crystal droplets. Opt Lett. 2008;33(20):2371-3doi: 10.1364/ol.33.002371.
Jánossy, I. (2008). Electromagnetic torque and force in axially symmetric liquid-crystal droplets. Optics letters, 33(20), 2371-3. https://doi.org/10.1364/ol.33.002371
Jánossy, István. "Electromagnetic torque and force in axially symmetric liquid-crystal droplets." Optics letters vol. 33,20 (2008): 2371-3. doi: https://doi.org/10.1364/ol.33.002371
Jánossy I. Electromagnetic torque and force in axially symmetric liquid-crystal droplets. Opt Lett. 2008 Oct 15;33(20):2371-3. doi: 10.1364/ol.33.002371. PMID: 18923626.
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Opt Lett. 2008 Oct 15;33(20):2371-3. doi: 10.1364/ol.33.002371.

Electromagnetic torque and force in axially symmetric liquid-crystal droplets.

Optics letters

István Jánossy

Affiliations

  1. Research Institute for Solid State Physics and Optics, Budapest, Hungary. [email protected]

PMID: 18923626 DOI: 10.1364/ol.33.002371

Abstract

Circularly polarized light exerts torque on birefringent objects. In the case of axially symmetric particles, however, the moment of radiation force balances the direct optical torque. This explains the observation that radial liquid-crystal droplets, in contrast to planar droplets, do not spin in circularly polarized light. The conclusion is in agreement with considerations based on the angular momentum conservation of light [Phys. Rev. Lett.96, 163905 (2006)].

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