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Title Airy beams and their peculiar propagation dynamics
Alternative Title ΔέσμεςAiry και η ιδιόμορφη δυναμική διάδοσής τους
Author Κοκκινάκης, Εμμανουήλ Θεόδωρος
Thesis advisor Παπάζογλου, Δημήτριος
Abstract Recently, Airy beams, a new kind of non-spreading optical beams where the amplitude distribution is described by an Airy function, have been introduced. In contrast to other non-spreading optical waves the Airy distribution is the only dispersion-free solution in one dimension. Likewise, Airy beams are also referred to as “accelerating” since they propagate in a curved trajectory, like that of a projectile moving under the action of gravity. Furthermore, they are able to self-heal and bypass obstacles. These novel properties make them exciting for applications. In this thesis we numerically study the propagation dynamics of 1D Airy beams. We compare our results with analytic or empirical solutions that have been presented in the bibliography. Likewise, by varying the initial conditions we demonstrate the ballistic dynamics of the Airy beam trajectory and by applying obstacles we study their self-healing properties. Finally, we study the autofocusing character of a complex wave that is comprised by two counterpropagating Airy beams and demonstrate the Janus wave signature by focusing such waves using a lens.
Language English
Issue date 2022-07-22
Collection   School/Department--School of Sciences and Engineering--Department of Physics--Graduate theses
  Type of Work--Graduate theses
Permanent Link https://elocus.lib.uoc.gr//dlib/2/5/f/metadata-dlib-1661847327-711776-2791.tkl Bookmark and Share
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