Singular optical manipulation of birefringent elastic media using non singular beams
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en
Article de revue
Ce document a été publié dans
Optics Letters. 2009-10-15, vol. 34, n° 20, p. 3229-3231
Optical Society of America - OSA Publishing
Résumé en anglais
It is shown that nonsingular light beams can generate singular birefringent patterns in homogeneous birefringent elastic media. These orientational defects of the optical-axis spatial distribution originate from an optical ...Lire la suite >
It is shown that nonsingular light beams can generate singular birefringent patterns in homogeneous birefringent elastic media. These orientational defects of the optical-axis spatial distribution originate from an optical torque driven by a nonzero longitudinal field component. Singular radial and spin-dependent azimuthal light-induced elastic distortion patterns are described and experimentally observed in a uniform liquid-crystal film in the course of a focused circularly polarized Gaussian beam.< Réduire
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