Shaping the focal field of radially/azimuthally polarized phase vortex with Zernike polynomials

Lei Wei, Paul Urbach

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)
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Abstract

The focal field properties of radially/azimuthally polarized Zernike polynomials are studied. A method to design the pupil field in order to shape the focal field of radially or azimuthally polarized phase vortex is introduced. With this method, we are able to obtain a pupil field to achieve a longitudinally polarized hollow spot with a depth of focus up to 12Y and 0.28Y lateral resolution (FWHM) for an optical system with numerical aperture 0.99; a pupil field to generate eight focal spots along the optical axis is also obtained with this method.
Original languageEnglish
Article number065608
Number of pages8
JournalJournal of Optics
Volume18
Issue number6
DOIs
Publication statusPublished - 2016

Keywords

  • pupil engineering
  • optical vortices
  • Zernike polynomials

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