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Identifier	000443214
Title	Design and engineering of structured light tailored for materials science applications
Alternative Title	Σχεδιασμός και υλοποίηση διαμορφωμένου φωτός προσαρμοσμένου για εφαρμογές στην επιστήμη των υλικών
Author	Μανσούρ, Δημήτριος
Thesis advisor	Παπάζογλου, Δημήτριος
Reviewer	Τζωρτζάκης, Στέλιος Καφεσάκη, Μαρία
Abstract	The generation of custom light fields, often described as structured light, is a topic of wide interest in optics. Structured light provides a significant advantage compared to non-structured light, by enabling us to control the intensity distribution and the focus position in both linear and non-linear propagation regimes. Such a control is challenging for high-power beams, since as one increases the beam’s optical power, nonlinear effects inevitably take place and as a result the beam’s spatial structure is dynamically altered. Although a plethora of structured optical beams have been introduced to address this problem, their generation is not trivial. Their complexity challenges our current state of the art techniques for light structuring and has urged us to exploit, among others, unconventional approaches like the use of optical aberrations or spatial multiplexing. This thesis is focused on theoretical and experimental design techniques for materializing structured optical wave packets, with higher efficiency and power and at broad spectral range, tailored for materials science applications. These novel techniques include among others the use of reflecting optics as broadband continuous phase masks, which allowed us to experimentally study the effect of spatiotemporal coherence on the propagation of accelerating wave packets and to generate curved plasma channels for THz generation in air. Likewise, using rotationally symmetric accelerating beams as a template, we introduce a toolbox of versatile light scalpels, and demonstrate the generation of Tornado waves, an exciting new type of spiralling light that combines radial and angular acceleration with a precisely tuned focal distribution.
Language	English
Subject	Wave optics
	Διαμόρφωση φωτός
Issue date	2021-11-26
Collection	School/Department--School of Sciences and Engineering--Department of Materials Science and Technology--Doctoral theses
	Type of Work--Doctoral theses
Permanent Link	https://elocus.lib.uoc.gr//dlib/b/7/9/metadata-dlib-1635496806-241201-5134.tkl
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