doktorsko delo
Jernej Laloš (Author), Janez Možina (Mentor), Matija Jezeršek (Co-mentor)

Abstract

V disertaciji raziskujemo optodinamsko pretvorbo končno razsežnih laserskih bliskov in njihov vpliv na mehansko valovanje v elastični snovi. Za to smo razvili matematični model na podlagi statistično dopolnjenega Huygensovega principa, ki ustrezno utežene Greenove funkcije iz prostorsko porazdeljenega vira sestavi v prostorsko porazdeljeno mehansko valovno obliko. Model smo uspešno uporabili pri umeritvi piezoelektričnega senzorja pomikov ter v temeljnih raziskavah prenosa gibalne količine iz laserskega bliska v trdno snov. Širjenje lasersko vzbujenega mehanskega valovanja smo z lasersko odklonsko sondo ter s hitro kamero proučevali tudi v nadomestku biološkega tkiva.

Keywords

disertacije;optodinamika;sevalni tlak;termoelastično raztezanje;odvzemanje snovi;laserski ultrazvok;mehansko valovanje;modeliranje valovanja;Greenove funkcije;utežne funkcije;hitra kamera;

Data

Language: Slovenian
Year of publishing:
Typology: 2.08 - Doctoral Dissertation
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [J. Laloš]
UDC: 535:531.3(043.3)
COBISS: 16145691 Link will open in a new window
Views: 1633
Downloads: 351
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: Optodynamic conversion of finite-sized laser pulses
Secondary abstract: In the dissertation, we investigate the optodynamic conversion of finite-sized laser pulses and their effects on mechanical waves in the elastic matter. We developed a mathematical model based on statistically enhanced Huygens' principle that combines appropriately weighted Green's functions from a spatially distributed source into a spatially distributed mechanical waveform. We successfully used the model in piezoelectric sensor calibration and in basic research of light-matter momentum transfer. We also studied the propagation of laser-induced mechanical waves with a laser-beam-deflection probe and a high-speed camera in a biological tissue substitute.
Secondary keywords: dissertations;optodynamics;radiation pressure;thermoelastic expansion;ablation;laser ultrasonics;mechanical waves;waveform modeling;Green's functions;weight functions;high-speed camera;Optodinamika;Disertacije;
Type (COBISS): Doctoral dissertation
Study programme: 0
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XXXII, 126 str.
ID: 10944557