Title Investigation of structured light topologies and its Lorenz-Mie scattering /
Translation of Title Struktūrinės šviesos topologijų tyrimas ir jos Lorenz-Mie sklaida.
Authors Berškys, Justas
DOI 10.15388/vu.thesis.748
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Pages 148
Keywords [eng] Airy beam ; Bessel beam ; topological quasiparticles ; Lorenz-Mie scattering ; vector beams
Abstract [eng] Many of today’s technological advancements rely on the precise control of light. Light-based technologies are applied in fields such as signal transmission, sensors, material processing, medical imaging, and quantum technologies. These advancements are made possible by manipulating various properties of light, including frequency, phase, polarization, and amplitude. One area of optics focuses on shaping laser beams by controlling their intensity, polarization, and phase distribution. This work examines inhomogeneously polarized structured light beams, such as Bessel-Gaussian and Airy beams. These beams are non-diffracting and self-reconstructing, making them particularly useful in applications where maintaining a stable intensity profile or resistance to perturbations is important. In beam topology, stable field configurations can be observed, known as topological quasiparticles, including optical skyrmions and merons. Another relevant investigation field is multipolar nanophotonics, which explores the interaction between structured light and nano-scale objects. The generalized Lorenz-Mie theory facilitates the rapid calculation of light scattering problems and provides insights into the components of scattering multipoles. These calculations are widely used in applications such as optical tweezers, which enable precise trapping and manipulation of microscopic particles.
Dissertation Institution Vilniaus universitetas.
Type Doctoral thesis
Language English
Publication date 2025