Journal
OPTICS COMMUNICATIONS
Volume 271, Issue 1, Pages 40-47Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2006.10.001
Keywords
radial polarization; azimuthal polarization; liquid-crystal spatial light modulators; high numerical-aperture objective lenses; focusing properties; diffraction; polarization
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We examined pupil-plane polarization structures for high numerical-aperture objective lenses that generate light distributions at the focal volume similar to those produced by purely radial and azimuthal polarizations. The engineered structures can be dynamically generated with spatial light modulators without the need for additional moving parts in the optical system. Computer simulations show that the method can be considered a valuable addition to the tools available for controlling the interaction of light with matter at the focal region. (c) 2006 Elsevier B.V. All rights reserved.
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