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Optics Letters

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  • Vol. 29, Iss. 8 — Apr. 15, 2004
  • pp: 875–877

Polarization singularities in optical lattices

Isaac Freund  »View Author Affiliations


Optics Letters, Vol. 29, Issue 8, pp. 875-877 (2004)
http://dx.doi.org/10.1364/OL.29.000875


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Abstract

Polarization singularities are shown to be unavoidable features of three-dimensional optical lattices. These singularities take the form of lines of circular polarization, C lines, and lines of linear polarization, L lines. The polarization figures surrounding a C line (L line) rotate about the line with winding number ±1/2 (±1). C and L lines permeate the lattice, meander throughout the unit cell, and form closed loops. Surprisingly, every point in a linearly polarized optical lattice is found to be a singularity about which the surrounding polarization vectors rotate with an integer winding number.

© 2004 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.7010) Atomic and molecular physics : Laser trapping
(220.4000) Optical design and fabrication : Microstructure fabrication
(260.2130) Physical optics : Ellipsometry and polarimetry
(260.3160) Physical optics : Interference
(260.5430) Physical optics : Polarization

Citation
Isaac Freund, "Polarization singularities in optical lattices," Opt. Lett. 29, 875-877 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-8-875


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