Spiral-like singular beams in gyrotropic crystals

A. Rubass, T. Fadeyeva, Yu Egorov, V. Shvedov, A. Volyar, A. Desyatnikov, Yu Kivshar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Recent developments in solving a paraxial wave equation1 open new perspectives in theoretical analysis of different types of singular beams stimulating in turn a great series of experimental investigations 2,3. In particular, authors of Ref.4 propose to use pure phase masks for creating a structurally stable helico-conical singular beam with spiral-like intensity distribution. On the other hand, artificial phase masks need a great precision in their manufacturing connected with a large industrial outlay. Because of a great interest is to use natural objects for generating singularities in beams. Such objects are anisotropic crystals. As is well-known, uniaxial and biaxial crystals serve as basic elements for generating optical vortices nested in different types of singular beams 5. The most amazing feature of the crystal is ability to create stable polychromatic vortices with high energy effectiveness. In contrast to the method of computer-generated holograms6,7 the crystal forms a white vortex-bearing beam without any additional gadgets. The aim of the present article is to consider one more way permitting to generate singular beams bearing spiral edge dislocations and optical vortices with the help of two gyrotropic crystals.

Original languageEnglish
Title of host publicationSeventh International Conference on Correlation Optics
DOIs
Publication statusPublished - 2006
EventSeventh International Conference on Correlation Optics - Chernivtsi, Ukraine
Duration: Sep 6 2005Sep 9 2005

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6254
ISSN (Print)0277-786X

Other

OtherSeventh International Conference on Correlation Optics
CountryUkraine
CityChernivtsi
Period9/6/059/9/05

Keywords

  • Gyrotropic crystal
  • Optical vortices
  • Singular beams

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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