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Bessel-Gauss beams of arbitrary integer order: propagation profile, coherence properties and quality factor

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posted on 2023-10-18, 16:00 authored by S. CruzyCruz, Z. Gress, P. Jimenez-Macias, O. Rosas-Ortiz
We present a novel approach to generate Bessel-Gauss modes of arbitrary integer order and well-defined optical angular momentum in a gradient index medium of transverse parabolic profile. The propagation and coherence properties, as well as the quality factor, are studied using algebraic techniques that are widely used in quantum mechanics. It is found that imposing the well-defined optical angular momentum condition, the Lie group $SU(1,1)$ comes to light as a characteristic symmetry of the Bessel-Gauss beams.

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