Physics dissertation defense of Amante Ama: Radially polarized Bessel beams

The Department of Physics of the School of Science and Engineering of Ateneo de Manila University cordially invites you to a Ph.D. in Physics Dissertation Defense by Amante T. Ama on Wednesday, May 6, 2:00 PM (ONLINE). His dissertation is entitled, “Radially polarized Bessel beams,” under the supervision of Raphael A. Guerrero, Ph.D. His dissertation panel members are Dr. Alvie Astronomo (PNRI), Dr. Joel Maquiling (Physics), Dr. Jose Mario Diaz (Chemistry), Dr. Ramon Delos Santos (Physics).

Abstract

A radial polarizer prepared by growing a thickness-constrained spherulite from an oleoresin polymer is presented. As an insert between crossed linear polarizers, the fabricated device is used to alter the intensity profile of an incident zero-order Bessel beam. Radially polarized output beams have an intensity profile with a pronounced singularity at the center. Beams may be rotated by a simple reorientation of the crossed polarizers. Experimental results with our radial polarizer correspond to a transformation of the Bessel beam order from l = 0 to l = 2.

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