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<dc:title xml:lang="en">Local spectroscopy for the study of anisotropic optical properties of oriented assemblies of silver nanowires</dc:title>
<dcterms:alternative xml:lang="fr">Spectroscopie locale pour l’étude des propriétés optiques anisotropes d’assemblage orientés de nanofils d’argent</dcterms:alternative>
<dc:subject xml:lang="fr">Interférométrie en lumière blanche</dc:subject>
<dc:subject xml:lang="fr">Interféromètre Linnik</dc:subject>
<dc:subject xml:lang="fr">Monocouches de nanofils d’argent orientés</dc:subject>
<dc:subject xml:lang="fr">Résonnance plasmonique</dc:subject>
<dc:subject xml:lang="fr">Nanostructures anisotropes</dc:subject>
<dc:subject xml:lang="fr">Imagerie hyperspectrale</dc:subject>
<dc:subject xml:lang="fr">Super-résolution</dc:subject>
<dc:subject xml:lang="en">White light interferometry</dc:subject>
<dc:subject xml:lang="en">Linnik interferometer</dc:subject>
<dc:subject xml:lang="en">Oriented silver nanowire monolayers</dc:subject>
<dc:subject xml:lang="en">Plasmonic resonance</dc:subject>
<dc:subject xml:lang="en">Anisotropic nanostructures</dc:subject>
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<dcterms:abstract xml:lang="fr">Cette thèse présente le développement d’un microscope interférométrique de type Linnik couvrant l’UV-Visible-NIR, conçu pour la caractérisation optique de nanostructures anisotropes, notamment des monocouches orientées de nanofils d’argent. Le système permet une imagerie hyperspectrale en lumière polarisée ou non sur une plage de 300 à 1100 nm, avec une résolution latérale submicronique. Les échantillons ont été réalisés par lithographie électronique ou par pulvérisation en incidence rasante. L’anisotropie optique, notamment la résonance plasmonique transverse des nanofils d’argent, a été observée expérimentalement autour de 360 nm et analysée par approche modale. Des techniques complémentaires, comme la microscopie assistée par microsphère et l’étude de surfaces structurées par laser, ont également été explorées. Ce travail établit une plateforme instrumentale robuste pour l’imagerie hyperspectrale et la métrologie optique à l’échelle nanométrique.</dcterms:abstract>
<dcterms:abstract xml:lang="en">This thesis focuses on the development of a Linnik UV-Visible-NIR interferometric microscope dedicated to the optical characterization of anisotropic nanostructures, particularly oriented silver nanowire monolayers. This system enables hyperspectral imaging with unpolarized or polarized light over a spectral range from 300 nm to 1100 nm, achieving submicron lateral resolution. Samples were fabricated using either electron beam lithography or grazing incidence spraying. The optical anisotropy of the samples, especially the transverse plasmonic resonance of silver nanowires, was experimentally observed, as expected, around 360 nm, and analyzed using a modal method. Complementary techniques such as microsphere-assisted microscopy and the study of laser-structured surfaces were also explored. This work provides a robust instrumental platform for performing hyperspectral imaging using white light interferometry and optical metrology at the nanometer scale.</dcterms:abstract>
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