Dudley, Angela LLib, YMhlanga, TEscuti, MForbes, A2014-08-062014-08-062014-03Dudley, A, Lib, Y, Mhlanga, T, Escuti, M and Forbes, A. 2014. Generating and measuring non-diffracting vector Bessel beams. In: Proceedings of SPIE Vol. 8999, 89990K, Complex Light and Optical Forces VIII, San Francisco, California, United States, 4-6 February 20149780819499127http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1837795http://hdl.handle.net/10204/7563Proceedings of SPIE Vol. 8999, 89990K, Complex Light and Optical Forces VIII, San Francisco, California, United States, 4-6 February 2014We demonstrate how to create non-diffracting vector Bessel beams by implementing a spatial light modulator (SLM) to generate scalar Bessel beams which are then converted into vector fields by the use of an azimuthally-varying birefringent plate, known as a q-plate. The orbital angular momentum (OAM) of these generated beams is measured by performing a modal decomposition on each of the beam’s polarization components. This is achieved by separating the circular polarization components through a polarization grating (PG) before performing the modal decomposition. We investigate both single charged Bessel beams as well as superpositions and the results are in good agreement with theory.enVector fieldsVessel beamsOrbital angular momentumBessel beamsSpatial light modulatorPolarization gratingConference PresentationDudley, A. L., Lib, Y., Mhlanga, T., Escuti, M., & Forbes, A. (2014). Generating and measuring non-diffracting vector Bessel beams. SPIE Proceedings. http://hdl.handle.net/10204/7563Dudley, Angela L, Y Lib, T Mhlanga, M Escuti, and A Forbes. "Generating and measuring non-diffracting vector Bessel beams." (2014): http://hdl.handle.net/10204/7563Dudley AL, Lib Y, Mhlanga T, Escuti M, Forbes A, Generating and measuring non-diffracting vector Bessel beams; SPIE Proceedings; 2014. http://hdl.handle.net/10204/7563 .TY - Conference Presentation AU - Dudley, Angela L AU - Lib, Y AU - Mhlanga, T AU - Escuti, M AU - Forbes, A AB - We demonstrate how to create non-diffracting vector Bessel beams by implementing a spatial light modulator (SLM) to generate scalar Bessel beams which are then converted into vector fields by the use of an azimuthally-varying birefringent plate, known as a q-plate. The orbital angular momentum (OAM) of these generated beams is measured by performing a modal decomposition on each of the beam’s polarization components. This is achieved by separating the circular polarization components through a polarization grating (PG) before performing the modal decomposition. We investigate both single charged Bessel beams as well as superpositions and the results are in good agreement with theory. DA - 2014-03 DB - ResearchSpace DP - CSIR KW - Vector fields KW - Vessel beams KW - Orbital angular momentum KW - Bessel beams KW - Spatial light modulator KW - Polarization grating LK - https://researchspace.csir.co.za PY - 2014 SM - 9780819499127 T1 - Generating and measuring non-diffracting vector Bessel beams TI - Generating and measuring non-diffracting vector Bessel beams UR - http://hdl.handle.net/10204/7563 ER -