Kiliyanamkandy, Anoop (2015) Femtosecond Laser Ablation of Solid Targets using Gaussian and Vortex Beams. [Tesi di dottorato]

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Item Type: Tesi di dottorato
Lingua: English
Title: Femtosecond Laser Ablation of Solid Targets using Gaussian and Vortex Beams
Creators:
CreatorsEmail
Kiliyanamkandy, Anoopanoop.kiliyanamkandy@unina.it
Date: 30 March 2015
Number of Pages: 121
Institution: Università degli Studi di Napoli Federico II
Department: Fisica
Scuola di dottorato: Ingegneria industriale
Dottorato: Tecnologie innovative per materiali, sensori ed imaging
Ciclo di dottorato: 27
Coordinatore del Corso di dottorato:
nomeemail
Cassinese, Antoniocassinese@fisica.unina.it
Tutor:
nomeemail
Amoruso, SalvatoreUNSPECIFIED
Date: 30 March 2015
Number of Pages: 121
Uncontrolled Keywords: Laser Ablation, Laser Produced Plasma, Nanoparticle Generation, Laser Surface Structuring.
Settori scientifico-disciplinari del MIUR: Area 02 - Scienze fisiche > FIS/01 - Fisica sperimentale
Area 02 - Scienze fisiche > FIS/03 - Fisica della materia
Aree tematiche (7° programma Quadro): NANOSCIENZE, NANOTECNOLOGIE, MATERIALE E PRODUZIONE > Nanoscienze e Nanotecnologie
NANOSCIENZE, NANOTECNOLOGIE, MATERIALE E PRODUZIONE > Materiali
Date Deposited: 07 Apr 2015 14:01
Last Modified: 24 Sep 2015 12:58
URI: http://www.fedoa.unina.it/id/eprint/10220
DOI: 10.6092/UNINA/FEDOA/10220

Abstract

This thesis presents a detailed investigation of laser ablation of solid targets with femtosecond (fs) pulses, focusing on three prominent aspects: 1) spatial and temporal evolution of the laser produced plume, in high vacuum condition; 2) nanoparticles generation in high vacuum and applications of nanostructured films in material science; 3) surface micro/nanostructure formation, in ambient condition. Most of the experiments were carried out on pure copper and silicon targets, and some of the results were compared with other metals as well. While the first two investigations were performed with a standard, fs laser beam with Gaussian spatial intensity profile, material surface structuring was carried out with spatially shaped optical vortex pulses, which are recently gaining an increasing interest in the field of fs laser ablation.

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