8-12 July 2013
Africa/Johannesburg timezone
Home > Timetable > Session details > Contribution details
PDF | XML | iCal

Creating and decomposing vector Bessel beams

Presented by Dr. Angela DUDLEY on 9 Jul 2013 from 10:30 to 10:50
Type: Oral Presentation
Session: Photonics
Track: Track C - Photonics

Abstract

We show how to generate non-diffracting vector Bessel beams by implementing a spatial light modulator (SLM) and a q-plate, which is an azimuthally-varying birefringent plate. The SLM first creates the scalar Bessel beams which are then converted into vector Bessel beams by the use of the q-plate. We demonstrate how the orbital angular momentum (OAM) of these generated beams can be measured by performing a modal decomposition on each of the beam’s polarization components. This is achieved by separating the polarization components through a circular polarization beam-splitter before performing the modal decomposition. We study both single charged Bessel beams as well as superpositions and the results are in good agreement with theory.

Award

No

Supervisor

Prof. Andrew Forbes, AForbes1@csir.co.za, CSIR National Laser Centre

Paper

No

Place

Location: A1-11


Primary authors

More

Co-authors

  • Ms. Yanming LI Department of Electrical and Computer Engineering, North Carolina State University, Rayleigh, North Carolina 27695, USA
  • Ms. Thandeka MHLANGA CSIR National Laser Centre
  • Prof. Michael ESCUTI Department of Electrical and Computer Engineering, North Carolina State University, Rayleigh, North Carolina 27695, USA
  • Prof. Andrew FORBES CSIR National Laser Centre
More