Novel Vertical-External-Cavity Surface-Emitting Lasers (VECSEL) systems and applications

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dc.check.infoControlled Access
dc.contributor.advisorMcInerney, John G.
dc.contributor.advisorexternalLaurain, Alexandre
dc.contributor.advisorexternalJones, R. Jason
dc.contributor.advisorexternalMoloney, Jerome V.
dc.contributor.authorBondaz, Thibault Alain Georgesen
dc.date.accessioned2025-02-07T16:19:19Z
dc.date.available2025-02-07T16:19:19Z
dc.date.issued2024
dc.date.submitted2024
dc.descriptionControlled Access
dc.description.abstractThe development of laser technologies represents a pivotal milestone in human technological history, with semiconductor lasers playing a particularly transformative role due to their versatility, efficiency, and tunability. This thesis focuses on Vertical-External-Cavity Surface-Emitting Lasers (VECSELs), a subset of semiconductor lasers that offer unique advantages for high-power, single-mode operation and the integration of intracavity optical elements. These properties enable their application across a broad spectrum of fields, including terahertz (THz) generation and nonlinear imaging. This work presents two novel VECSEL-based systems. The first is a bicolor VECSEL designed for room-temperature THz emission via difference frequency generation (DFG). This system achieves milliwatt-level THz power and employs a two-stage stabilization method to enhance operational stability. The second system is a 1.5 GHz broadband pulsed laser developed for multiphoton microscopy. This high-repetition-rate laser minimizes photodamage and photobleaching. By using photonic crystal fibers and a Multiphoton Intrapulse Interference Phase Scan (MIIPS) scheme, the system generates a wide supercontinuum spectrum, enabling advanced pulse shaping for nonlinear imaging.en
dc.description.statusNot peer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationBondaz, T. A. G. 2024. Novel Vertical-External-Cavity Surface-Emitting Lasers (VECSEL) systems and applications. PhD Thesis, University College Cork.
dc.identifier.endpage128
dc.identifier.urihttps://hdl.handle.net/10468/17011
dc.language.isoenen
dc.publisherUniversity College Corken
dc.rights© 2024, Thibault A.G. Bondaz.
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectVECSEL
dc.subjectLaser
dc.subjectSemiconductor
dc.subjectPhysics
dc.subjectOptics
dc.titleNovel Vertical-External-Cavity Surface-Emitting Lasers (VECSEL) systems and applications
dc.typeDoctoral thesisen
dc.type.qualificationlevelDoctoralen
dc.type.qualificationnamePhD - Doctor of Philosophyen
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