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Optica Publishing Group
  • Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing
  • OSA Technical Digest Series (Optica Publishing Group, 2004),
  • paper FTuG11
  • https://doi.org/10.1364/FIO.2004.FTuG11

Phase singularities of the longitudinal field components in the focal region of a high-aperture optical system

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Abstract

We study the behavior of the longitudinal components of strongly focused electromagnetic fields. These components possess phase singularities and phase saddles that can be annihilated when the aperture angle of the lens is changed.

© 2004 Optical Society of America

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