Generating Variable Bessel Beam Profiles With a Transmission Grating

• Main Authors: De Ubago, Adrian Matthew U, Guerrero, Raphael A
• Format: text
• Published: Archīum Ateneo 2020
• Subjects: Bessel beams; Diffraction gratings; Beam propagation method; Diffraction; Physics
• Online Access: https://archium.ateneo.edu/physics-faculty-pubs/116; https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11486/1148604/Generating-variable-Bessel-beam-profiles-with-a-transmission-grating/10.1117/12.2568552.short
• Institution: Ateneo De Manila University

We present a simple mechanism for varying the core diameter of zero-order Bessel beams (BBs) through the use of a commercially available diffraction grating. A standard set-up to generate BBs is employed, based on an annular slit and a lens. Output BBs are made to pass through transmission gratings with different groove densities. Core diameters and propagation behavior are modified for BBs diffracted by gratings at diffraction orders m = 0 and m = 1.