Self-healing of tightly focused scalar and vector Bessel-Gauss beams at the focal plane

Sunil Vyas, Yuichi Kozawa, Shunichi Sato

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

The property of self-healing at the focal plane for both scalar and vector Bessel-Gauss (BG) beams is investigated in the tight focusing condition. For the BG beam, which is partially obstructed at the pupil plane, the spatial intensity distribution at the focal plane is well recovered. Furthermore, recovery of not only intensity but also polarization distribution is observed for an obstructed vector BG beam. This self-healing effect for both the intensity and polarization components is recognized even when the half of the beam is obstructed by a semicircular obstacle. The effect of the size of the obstacle on recovery of polarization and intensity distribution is studied. The role of the beam size at the pupil plane is also discussed.

Original languageEnglish
Pages (from-to)837-843
Number of pages7
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Volume28
Issue number5
DOIs
Publication statusPublished - 2011 Jan 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition

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