Characterizing the azimuthal and radial mode indices of a laguerre-gaussian beam using diffraction from a triangular aperture

A. Mourka, M. Mazilu, C. Shanor, Ewan M Wright, K. Dholakia

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

Abstract

Recent studies have reported a new method for the determination of the azimuthal index (topological charge) ℓ of an optical vortex beam (eg. Optics Express 19, 5760-5771 (2011)). Here we consider the performance of such a system for determining both the azimuthal as well as radial indices of a Laguerre-Gaussian beam by measuring the far-field diffraction pattern from a tailored annular triangular aperture. Both a multi-annular triangle aperture and an annular triangle aperture with radial spokes are used.

Original languageEnglish (US)
Title of host publicationOptics InfoBase Conference Papers
Publication statusPublished - 2011
EventLaser Science, LS 2011 - San Jose, CA, United States
Duration: Oct 16 2011Oct 20 2011

Other

OtherLaser Science, LS 2011
CountryUnited States
CitySan Jose, CA
Period10/16/1110/20/11

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ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

Cite this

Mourka, A., Mazilu, M., Shanor, C., Wright, E. M., & Dholakia, K. (2011). Characterizing the azimuthal and radial mode indices of a laguerre-gaussian beam using diffraction from a triangular aperture. In Optics InfoBase Conference Papers