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Ultrafast Photon Management: The Power of Harmonic Nanocrystals in Nonlinear Spectroscopy and Beyond

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https://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201904011323
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dc.contributor.advisorProf. Dr. Mirco Imlauger
dc.creatorKijatkin, Christian-
dc.date.accessioned2019-04-01T07:41:35Z-
dc.date.available2019-04-01T07:41:35Z-
dc.date.issued2019-04-01T07:41:37Z-
dc.identifier.urihttps://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201904011323-
dc.description.abstractThe present work broaches the physics of light-matter interaction, chiefly using nonlinear optical spectroscopy in a newly developed framework termed as Photon Management Concept. This way, existing fragments dealing with specific properties of harmonic and upconversion nanoparticles (HNPs/UCNPs) are consolidated into a full and coherent picture with the primary goal of understanding the underlying physical processes and their impact on the application side, especially in terms of imaging techniques, via suitable experimental and numerical studies. Contemporary optical setups involving contrast-enhancing agents are frequently limited in their excitation and detection configurations owing to a specialization to a select number of markers. As a result, the bandwidth of experimental methods and specimens that may be investigated is severely restricted in a large number of state-of-the-art setups. Here, an alternative approach involving HNPs and UCNPs, respectively, is presented providing an overview from their synthesis to optical characterization and to potential fields of application. Based on their inherent flexibility based on their nonlinear optical response, especially in terms of wavelength and intensity tunability, the PMC alleviates prevalent limitations by dynamically adapting the setup to a sample instead of the preliminary culling to a reduced number of eligible specimens that must not change their optical properties significantly during investigation. The use of HNPs supersedes such concerns due to their nearly instantaneously generated, strongly anti-Stokes shifted, coherent emission capable of producing radiation throughout the visible spectral range, including infrared and ultraviolet wavelengths. This way, HNPs transcend the traditional field of imaging and introduces potential applications in optomanipulation or holographic techniques. Thorough (nonlinear) optical characterization of UCNPs and alkali niobate HNP ensembles is performed to assess the fundamental physical mechanisms interwoven with numerical studies leading to their wide-ranging applicability. Final remarks show that HNPs are ideal candidates for realization of the PMC and yet hold an even further potential beyond current prospects.eng
dc.rightsAttribution 3.0 Germany*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/de/*
dc.subjectNonlinear Opticseng
dc.subjectUltrafast Physicseng
dc.subjectHarmonic Nanoparticleseng
dc.subjectUpconversion Nanoparticleseng
dc.subjectSpectroscopyeng
dc.subjectHarmonic Generationeng
dc.subjectLuminescenceeng
dc.subjectLiNbO3eng
dc.subject.ddc530 - Physikger
dc.titleUltrafast Photon Management: The Power of Harmonic Nanocrystals in Nonlinear Spectroscopy and Beyondeng
dc.typeDissertation oder Habilitation [doctoralThesis]-
thesis.locationOsnabrück-
thesis.institutionUniversität-
thesis.typeDissertation [thesis.doctoral]-
thesis.date2019-03-15-
dc.contributor.refereeProf. Dr. Dirk Berbenger
dc.subject.bk33.07 - Spektroskopieger
dc.subject.bk33.18 - Optikger
dc.subject.bk33.38 - Quantenoptik, nichtlineare Optikger
dc.subject.bk33.79 - Kondensierte Materie: Sonstigesger
dc.subject.bk33.90 - Physik in Beziehung zu anderen Fachgebietenger
dc.subject.pacs42.65.Ky - Frequency conversion; harmonic generation, including higher-order harmonic generationger
dc.subject.pacs42.65.Re - Ultrafast processes; optical pulse generation and pulse compressionger
dc.subject.pacs42.62.Be - Biological and medical applicationsger
dc.subject.pacs77.84.Dy - Niobates, titanates, tantalates, PZT ceramics, etc.ger
dc.subject.pacs77.84.Nh - Liquids, emulsions, and suspensions; liquid crystalsger
dc.subject.pacs78.67.Bf - Nanocrystals and nanoparticlesger
dc.subject.pacs81.07.Wx - Nanopowdersger
dc.subject.pacs87.83.+a - Biomedical applications of nanotechnologyger
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