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Dissertations / Theses on the topic 'Plasmoids'

Author: Grafiati

Published: 28 March 2023

Last updated: 25 July 2025

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1

Berger, T., J. Konheiser, A. V. Anikeev, et al. "Study of high temperature and high density plasmoids in axially symmetrical magnetic fields." Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-27870.

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Within the framework of an Institutional Partnership of the Alexander von Humboldt Foundation, the Budker Institute of Nuclear Physics Novisibirsk (BINP) and Forschungszentrum Dresden-Rossendorf worked together in a joint project devoted to the research at the coupled GDT-SHIP facility of the BINP with the focus on the study of plasma phenomena within the SHIP mirror section. The project began at July 1st, 2005 and ended on August 30th, 2008. It included work packages of significant theoretical, computational and analyzing investigations. The focus of this final report is on the presentation

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2

Berger, T., J. Konheiser, A. V. Anikeev, et al. "Study of high temperature and high density plasmoids in axially symmetrical magnetic fields." Forschungszentrum Dresden-Rossendorf, 2009. https://hzdr.qucosa.de/id/qucosa%3A21614.

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Within the framework of an Institutional Partnership of the Alexander von Humboldt Foundation, the Budker Institute of Nuclear Physics Novisibirsk (BINP) and Forschungszentrum Dresden-Rossendorf worked together in a joint project devoted to the research at the coupled GDT-SHIP facility of the BINP with the focus on the study of plasma phenomena within the SHIP mirror section. The project began at July 1st, 2005 and ended on August 30th, 2008. It included work packages of significant theoretical, computational and analyzing investigations. The focus of this final report is on the presentation

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3

Granier, Camille. "Nouveaux développements sur la théorie des instabilités des feuilles de courant dans les plasmas non-collisionels." Electronic Thesis or Diss., Université Côte d'Azur, 2022. http://www.theses.fr/2022COAZ4109.

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La reconnexion magnétique est une modification de la topologie du champ magnétique, responsable de la libération explosive d'énergie magnétique dans les plasmas astrophysiques, comme dans le cas des orages magnétosphériques et des éjections de masse coronale, ainsi que dans les plasmas de laboratoire, comme dans le cas des crashs en dents de scie dans les tokamaks. Dans les plasmas sans collisions comme, par exemple, la magnétosphère et le vent solaire, l'inertie des électrons devient particulièrement pertinente pour provoquer la reconnexion dans les régions de courant localisé intense, appelé

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4

Hörbe, Mario Robert [Verfasser], Julia [Gutachter] Tjus, and Garret [Gutachter] Cotter. "High-energy particle emission from plasmoids in jets of active galactic nuclei / Mario Robert Hörbe ; Gutachter: Julia Tjus, Garret Cotter ; Fakultät für Physik und Astronomie." Bochum : Ruhr-Universität Bochum, 2020. http://d-nb.info/1233484176/34.

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5

Lin, Ling. "Optical Manipulation Using Planar/Patterned Metallo-dielectric Multilayer Structures." Thesis, University of Canterbury. Electrical and Computer Engineering, 2008. http://hdl.handle.net/10092/1249.

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Tailoring surface plasmon (SP) resonances using metallic nanostructures for optical manipulation has been widely investigated in recent years; and there are many puzzles yet to be solved in this relatively new area. This thesis covers the study of the interaction of light with SP-supporting planar/patterned metallo-dielectric multilayer structures. Two separate, but closely related subjects were investigated using such structures, which are: SP-assisted optical transmission and optical metamaterials. The physical mechanisms of the SP-assisted transmission phenomenon were studied using planar/g

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6

Kurth, Martin L. "Plasmonic nanofocusing and guiding structures for nano-optical sensor technology." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/118670/1/Martin_Kurth_Thesis.pdf.

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This thesis investigated factors affecting the sensitivity of nano-optical sensors that could be used for the detection of trace amounts of explosives and environmental pollutants in air. By delivering air to regions of enhanced electric field produced by metallic nanostructures, as well as using structures that localise and guide light at nanoscale levels, detection limits can be reduced.

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7

Constant, Thomas J. "Optical excitation of surface plasmon polaritons on novel bigratings." Thesis, University of Exeter, 2013. http://hdl.handle.net/10871/9001.

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This thesis details original experimental investigations in to the interaction of light with the mobile electrons at the surface of metallic diffraction gratings. The gratings used in this work to support the resultant trapped surface waves (surface plasmon polaritons), may be divided into two classes: ‘crossed’ bigratings and ‘zigzag’ gratings. Crossed bigratings are composed of two diffraction gratings formed of periodic grooves in a metal surface, which are crossed at an angle relative to one another. While crossed bigratings have been studied previously, this work focuses on symmetries whi

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8

Loiselet, Ophelliam. "Synthèse et caractérisation d’agrégats bimétalliques pour la magnéto-plasmonique." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1033/document.

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Depuis plusieurs années les physiciens de la matière condensée s'intéressent aux propriétés optiques et magnétiques des nanoparticules métalliques. Deux propriétés restent largement étudiées : les résonances plasmon localisées et l'anisotropie magnétique à l'échelle nanométrique. Ces deux effets résultant de propriétés électroniques bien différentes sont habituellement rencontrés dans des nanosystèmes distincts. Depuis les années 2000 des études ont montré qu'il était possible de bénéficier de ces deux caractéristiques dans un seul et même système nanométrique. Dans cette thèse, nous nous inté

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9

Nagaraj, Nagaraj. "Effects of Dissipation on Propagation of Surface Electromagnetic and Acoustic Waves." Thesis, University of North Texas, 2012. https://digital.library.unt.edu/ark:/67531/metadc115126/.

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With the recent emergence of the field of metamaterials, the study of subwavelength propagation of plane waves and the dissipation of their energy either in the form of Joule losses in the case of electomagnetic waves or in the form of viscous dissipation in the case of acoustic waves in different interfaced media assumes great importance. with this motivation, I have worked on problems in two different areas, viz., plasmonics and surface acoustics. the first part (chapters 2 & 3) of the dissertation deals with the emerging field of plasmonics. Researchers have come up with various designs in

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10

Hettiarachchige, Chamanei Sandamali P. "The interaction of quantum dots with plasmons supported by metal waveguides." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/92278/1/Chamanei%20Sandamali_Hettiarachchige_Thesis.pdf.

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Plasmonics is a recently emerged technology that enables the compression of electromagnetic waves into miniscule metallic structures, thus enabling the focusing and routing of light on the nanoscale. Plasmonic waveguides can be used to miniaturise the size of integrated chip circuits while increasing the data transmission speed. Plasmonic waveguides are used to route the plasmons around a circuit and are a major focus of this thesis. Also, plasmons are highly sensitive to the surrounding dielectric environment. Using this property we have experimentally realised a refractive index sensor to de

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11

ElKabbash, Mohamed. "ACTIVE PLASMONICS AND METAMATERIALS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1512659080056302.

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12

Vogel, Michael Werner. "Theoretical and numerical investigation of plasmon nanofocusing in metallic tapered rods and grooves." Thesis, Queensland University of Technology, 2009. https://eprints.qut.edu.au/29241/1/Michael_Vogel_Citation.pdf.

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Effective focusing of electromagnetic (EM) energy to nanoscale regions is one of the major challenges in nano-photonics and plasmonics. The strong localization of the optical energy into regions much smaller than allowed by the diffraction limit, also called nanofocusing, offers promising applications in nano-sensor technology, nanofabrication, near-field optics or spectroscopy. One of the most promising solutions to the problem of efficient nanofocusing is related to surface plasmon propagation in metallic structures. Metallic tapered rods, commonly used as probes in near field microscopy and

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13

Vogel, Michael Werner. "Theoretical and numerical investigation of plasmon nanofocusing in metallic tapered rods and grooves." Queensland University of Technology, 2009. http://eprints.qut.edu.au/29241/.

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Effective focusing of electromagnetic (EM) energy to nanoscale regions is one of the major challenges in nano-photonics and plasmonics. The strong localization of the optical energy into regions much smaller than allowed by the diffraction limit, also called nanofocusing, offers promising applications in nano-sensor technology, nanofabrication, near-field optics or spectroscopy. One of the most promising solutions to the problem of efficient nanofocusing is related to surface plasmon propagation in metallic structures. Metallic tapered rods, commonly used as probes in near field microscopy and

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14

Dubrovina, Natalia. "Metamaterials for photonic applications." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112088/document.

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L’objet de cette étude concerne l’exploration, à la fois sur le plan théorique et expérimental, de la possibilité d’utilisation des métamatériaux pour des applications dans le domaine de la photonique aux longueurs d’onde télécoms (λ=1.5µm). L’un des principaux objectifs adressés dans le cadre de la thèse est de réaliser l’ingénierie de l’indice effectif en utilisant des résonances des plasmons de surface localisés des métamatériaux métallo-diélectriques. Deux cas particulièrement importants du point de vue de la réalisation technologique sont considérés :• Propagation en espace libre quand un

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15

Sönnichsen, Carsten. "Plasmons in metal nanostructures." [S.l.] : [s.n.], 2001. http://edoc.ub.uni-muenchen.de/archive/00002367.

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16

Sönnichsen, Carsten. "Plasmons in metal nanostructures." Diss., lmu, 2001. http://nbn-resolving.de/urn:nbn:de:bvb:19-23678.

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17

Kadic, Muamer. "Metamaterials for surface plasmons." Thesis, Aix-Marseille 3, 2011. http://www.theses.fr/2011AIX30026.

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Le travail présenté dans cette thèse comporte différents attrayant sujetsde l'optique comme les métamatériaux, l’optique transformationnelle, lescristaux photoniques, la réfraction négative et les interactions thermoplasmoniques.Nous avons développé plusieurs métamatériaux pour les plasmons desurface basés sur l'optique de transformation. Tout d'abord, nous avonsdémontré théoriquement, numériquement et expérimentalement certainsdispositifs mettant en scène le phénomène d’invisibilité.Deuxièmement, nous avons démontré la réfraction négative des plasmonsde surface en utilisant le concept d'espac

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18

Burnett, Mathew T. "Microspectroscopy of localised plasmons." Thesis, University of Bath, 2009. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516954.

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Working with nanoscale optics requires methods and equipment designed for the purpose. This thesis describes the development of techniques and a system for performing highly localised spectroscopy. The system consists of a nanonics multiview 2000 scanning near-field optical microscope, a grating spectrometer and a photonic crystal fibre supercontinuum light source. Discussion of the microscope includes its modes of operation and development of software to collect and analyse data. In order to demonstrate the setup, an example of localised spectroscopy is presented in the form of an investigati

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19

Turek, Vladimir. "Plasmonics at liquid-liquid interfaces." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/38445.

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The PhD has studied gold nanoparticles (NPs) at the liquid-liquid interface (LLI). Some of the key aspects of the work are listed below. • Centrifugation as a novel and efficient method for adsorbing a controlled number of NPs to the LLI. • Controlled and tuneable 2D interparticle separation at the LLI as evidenced by the plasmon ruler. • Reversible adsorption of 16 nm gold nanoparticles at the water-DCE interface. • Centrifugation as a novel method to form an ultra-concentrated NP aqueous phase. • Controlled and tuneable 3D inter-particle separation in water by ultra-concentration. • The ultr

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20

Kaube, Benjamin. "Plasmonics : from electrons to devices." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/58997.

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From molecular sensors to perfect lenses, plasmonic devices promise a wealth of breakthrough applications by coupling light to oscillations of the electron plasma. In order to harness the full technological potential of plasmonics, coherent plasma excitations must be sustained over many cycles. On the scale of practical devices, optical properties of media are characterised by the mascroscopic dielectric function. This quantity can be determined from first principles in terms of transitions between electronic states. Understanding of losses within plasmonic systems must thus be built up from e

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21

Peng, Cheng S. M. Massachusetts Institute of Technology. "Towards infrared plasmonics in graphene." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101585.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 59-64).<br>Graphene plasmons have recently been proposed as an alternative to noble-metal plasmons in the field of photonics, due to its extremely tight light confinement, relatively long-lived collective oscillation, and high tunability via electrostatic gating. Successful support and tuning of graphene plasmonic modes rely on controllable doping of graphene to high carrier densities in nano

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22

Khlopin, Dmitry. "Aluminum plasmonics for optical applications." Thesis, Troyes, 2017. http://www.theses.fr/2017TROY0034.

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La plasmonique repose sur les champs électromagnétiques intenses et confinés apparaissant à résonance autour de nanostructures métalliques. Parmi ces métaux, l'aluminium soutient une gamme variée de résonances plasmoniques de l'UV jusqu’à l'IR. En raison des pertes élevées dans le visible, une amélioration est nécessaire pour concurrencer les métaux nobles. Une stratégie pour augmenter la qualité des résonances est d’utiliser un couplage diffractif au sein d’un réseau périodique. Nous montrons expérimentalement et numériquement une amélioration d’un facteur 7 du facteur de qualité par rapport

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23

Ansell, Daniel. "Graphene for enhanced metal plasmonics." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/graphene-for-enhanced-metal-plasmonics(7bb0ffb1-f46f-498e-bb88-9626021f6f58).html.

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The experimental work undertook in this thesis looks to integrate technologies developed by the graphene and plasmonics communities, respectively, for the purpose of producing devices of enhanced qualities to those of similar utility that have previously been produced. Furthermore, where possible, we look to offer disruptive innovation, by utilising coupled properties that may offer unique possibilities for applications. A hybrid graphene-plasmonic waveguide modulator is fabricated and shown to operate successfully at a standard telecommunications frequency. Different plasmonic-waveguide desig

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24

Luo, Yu. "Transformation optics applied to plasmonics." Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/10521.

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Lately, transformation optics (TO) has driven the development of metamaterial science, providing a direct link between a desired electromagnetic phenomenon and the material response required for its occurrence. However, this powerful framework is not restricted to the metamaterial design, and it has recently been exploited to study surface plasmon assisted phenomena. In this thesis, we mainly focus on the general strategy based on TO to design and study analytically plasmonic devices capable of efficiently harvesting light over a broadband spectrum and achieving considerable field confinement

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25

LIN, LYUYE. "Plasmonics in Metal Insulator Cavities." Doctoral thesis, Università degli studi di Genova, 2022. http://hdl.handle.net/11567/1071822.

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Subwavelength multilayer metal-insulator nanostructures with tuneable resonances have been widely used for various applications in optoelectronics and photonics, due to their unique dispersion relation of the dielectric permittivity. In this thesis, we firstly studied the optical properties and the resonance modes of the metal/insulator/metal (MIM) metamaterial system by spectroscopic ellipsometry and COMSOL Multiphysics calculations based on finite element methods. Our calculation results show that MIM systems with vertical or lateral gratings can both support the multiple cavity modes that

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26

DELANNEE, CECILE. "Contribution a l'etude des plasmoides de la couronne solaire." Paris 6, 1997. http://www.theses.fr/1997PA066296.

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La couronne solaire est le lieu de phenomenes encore inexpliques. Des nuages de plasma se deplacent en son sein. Ces nuages sont aussi appeles plasmoides. Dans mon travail de these, j'ai analyse trois observations de plasmoides. Chacune presente des resultats originaux. Les plasmoides sont plus denses, plus froids et plus magnetises que la couronne ambiante. Leur vitesses varient de 20 km s#-#1 a 150 km s#-#1. Leur dynamique est tres particuliere. Pour l'expliquer, j'ai determine les forces agissant sur ces nuages. L'interaction des nuages avec la couronne est non collisionnelle et est dominee

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27

Édes, Zoltán. "Fotoluminiscence zesílená plazmonovými polaritony." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230270.

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Diplomová práce se zabývá fotoluminiscencí polovodičových materiálů zesílené plazmonovými polaritony. Je popsána základní teorie interakce mezi lokalizovanými povrchovými plazmonovými polaritony a fotoluminiscenčními látkami. Dva mechanismy, které mohou vést k fotoluminiscenci zesílené plazmonovými polaritony jsou diskutovány. Následně je popsán návrh aparatury pro měření fotoluminiscence a způsob její realizace. Funkčnost aparatury je ověřena měřením fotoluminiscenčních spekter objemového GaN, nanokrystalického Si a CdTe kvantových teček. Nakonec je zkoumána metoda přípravy vzorků sestávající

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28

Jory, Michael John. "Optical sensing with surface plasmons." Thesis, University of Exeter, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240308.

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29

Ager, C. D. "Plasmons in microstructured semiconductor 2DEGs." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385904.

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30

Jain, Prashant K. "Plasmons in assembled metal nanostructures." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/28207.

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Thesis (M. S.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2008.<br>Committee Chair: El-Sayed, Mostafa A.; Committee Member: Lyon, L. Andrew; Committee Member: Sherrill, C. David; Committee Member: Wang, Zhong Lin; Committee Member: Whetten, Robert L.

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31

Lei, Dang-Yuan. "Superfocusing, biosensing and modulation in plasmonics." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/9046.

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Plasmonics could bridge the gap between photonics and electronics at the nanoscale, by allowing the realization of surface-plasmon-based circuits and plasmonic chips in the future. To build up such devices, elementary components are required, such as a passive plasmonic lens to focus free-space light to nanometre area and an active plasmonic modulator or switch to control an optical response with an external signal (optical, thermal or electrical). This thesis partially focuses on designing novel passive and active plasmonic devices, with a specific emphasis on the understanding of the physica

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32

Héron, Sébastien. "Nanostructures pour l'exaltation d'effets non linéaires." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLX082/document.

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Les sources infrarouges basées sur des effets d'optique du second ordre constituent de très bons outils de spectrométrie des polluants présents dans l'atmosphère, grâce notamment à leur grande accordabilité spectrale. Ils demandent toutefois une forte puissance lumineuse incidente et une grande quantité de matériau non linéaire pour être efficaces. On peut les rendre très compactes en réalisant la conversion de fréquence à l'aide de nanostructures plasmoniques contenant des inclusions diélectriques présentant une susceptibilité du deuxième ordre non nulle. La lumière y est très fortement conce

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33

Iyer, Srinivasan. "Effects of surface plasmons in subwavelength metallic structures." Doctoral thesis, KTH, Optik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103613.

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The study of optical phenomena related to the strong electromagnetic response of noble metals (silver (Ag) and gold (Au) being most popular) over the last couple of decades has led to the emergence of a fast growing research area called plasmonics named after 'surface plasmons' which are electron density waves that propagate along the interface of a metal and a dielectric medium. Surface plasmons are formed by the coupling of light to the electrons on the metal surface subject to the fulfillment of certain physical conditions and they are bound to the metal surface. Depending on whether the me

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34

Hugall, James T. "On the nature of SERS from plasmonic nanostructures." Thesis, University of Cambridge, 2013. https://www.repository.cam.ac.uk/handle/1810/267496.

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The nature of surface-enhanced Raman scattering (SERS) on nanostructured surfaces is explored using both inorganic and organic-based systems and a variety of environmental perturbation mechanisms. Experimental optical characterisation systems are developed and existing systems extended to facilitate this exploration. SERS of inorganic semiconducting quantum dots (QDs) is observed for the first time, paving the way for their use as spatially well-defined SERS markers. Tuning of the Raman excitation wavelength allows comparison between resonance and nonresonance QD SERS and identifies enhancemen

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Scales, Christine. "Magneto-plasmons in optical slab waveguides." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26765.

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The effect of an externally applied magnetic field on the propagation characteristics of a plasmon-polariton wave supported by an infinitely wide thin metal waveguide was investigated. In order to do so, the dispersion relation was derived, from Maxwell's equations, enabling accurate modelling of the situation of interest. The general dispersion relation, including the constraint equation, for magneto-plasmons was derived in general, and then, specifically for a magnetic field applied along three orthogonal cartesian axes. The losses in the metal were included in the dispersion equation so tha

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Marques, Antonio Neudson Lima. "Teoria diagramÃtica para plasmons em semicondutores." Universidade Federal do CearÃ, 2004. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=4066.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>CoordenaÃÃo de AperfeiÃoamento de NÃvel Superior<br>O cÃlculo da luminescÃncia em um semicondutor de gap direto Ã feito por dois mÃtodos e, sÃo realizadas comparaÃÃes dos resultados teÃricos obtidos. No primeiro caso, o mÃtodo das funÃÃes de Green Ã utilizado e a interaÃÃo coulombiana entre o sistema elÃtron-buraco que compÃe o plasma, Ã tratada atravÃs da AproximaÃÃo de Fases AleatÃrias. Como resultado importante obtemos a funÃÃoo dielÃtrica, com a qual podemos associar a resposta Ãptica do sistema Ãs excitaÃÃes externas. No segun

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37

Lereu, Aude L. "Couplages assistés par plasmons de surface." Dijon, 2005. http://www.theses.fr/2005DIJOS053.

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38

Kociak, Mathieu. "Supraconductivite et plasmons dans les nanotubes." Phd thesis, Paris 11, 2001. http://www.theses.fr/2001PA112101.

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Dans cet ouvrage, nous presentons deux types d'experiences sur des nanotubes uniques caracterises parallelement par microscopie electronique en transmission. Le premier type d'experiences a ete mene sur des jonctions metal-nanotube de carbone-metal. La resistance differentielle de ces jonctions a ete mesuree a des temperatures allant de 50 mk a 1k. Lorsque les contacts sont supraconducteurs, nous avons montre qu'il etait possible d'induire par effet de proximite un supercourant au sein d'une corde ou d'un tube monoparoi. Lorsque les contacts sont normaux, nous avons pu mettre en evidence une t

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Moazzezi, Mojtaba. "Quantum Coherence Effects Coupled via Plasmons." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404550/.

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This thesis is an attempt at studying quantum coherence effects coupled via plasmons. After introducing the quantum coherence in atomic systems in Chapter 1, we utilize it in Chapter 2 to demonstrate a new technique of detection of motion of single atoms or irons inside an optical cavity. By taking into account the interaction of coherences with surface plasmonic waves excited in metal nanoparticles, we provide a theoretical model along with experimental data in Chapter 3 to describe the modification of Raman spectra near metal nanoparticles. We show in chapter 4 that starting from two emitter

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40

Bhatta, Hari Lal. "UV Magnetic Plasmons in Cobalt Nanoparticles." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1505221/.

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The main goals of this research were to fabricate magnetic cobalt nanoparticles and study their structural, crystal structure, optical, and magnetic properties. Cobalt nanoparticles with average particle size 8.7 nm were fabricated by the method of high temperature reduction of cobalt salt utilizing trioctylphosphine as a surfactant, oleic acid as a stabilizer, and lithium triethylborohydride as a reducing reagent. Energy-dispersive X-ray spectroscopy (EDX) analysis confirmed the formation of cobalt nanoparticles. High resolution transmission electron microscopy images show that Co NPs form bo

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Vernon, Kristy C. "Strongly localised plasmons in metallic nanostructures." Thesis, Queensland University of Technology, 2008. https://eprints.qut.edu.au/19318/2/Kristy_Vernon_Citation.pdf.

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Strongly localised plasmons in metallic nano-structures offer exciting characteristics for guiding and focusing light on the nano-scale, opening the way for the development of new types of sensors, circuitry and improved resolution of optical microscopy. The work presented in this thesis focuses on two major areas of plasmonics research - nano-focusing structures and nano-sized waveguides. Nano-focusing structures focus light to an area smaller than the wavelength and will find applications in sensing, efficiently coupling light to nano-scale devices, as well as improving the resolution of nea

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42

Vernon, Kristy C. "Strongly localised plasmons in metallic nanostructures." Queensland University of Technology, 2008. http://eprints.qut.edu.au/19318/.

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Strongly localised plasmons in metallic nano-structures offer exciting characteristics for guiding and focusing light on the nano-scale, opening the way for the development of new types of sensors, circuitry and improved resolution of optical microscopy. The work presented in this thesis focuses on two major areas of plasmonics research - nano-focusing structures and nano-sized waveguides. Nano-focusing structures focus light to an area smaller than the wavelength and will find applications in sensing, efficiently coupling light to nano-scale devices, as well as improving the resolution of nea

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43

Ameling, Ralf [Verfasser], and Harald [Akademischer Betreuer] Giessen. "Microcavity plasmonics / Ralf Ameling. Betreuer: Harald Giessen." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2011. http://d-nb.info/1014785200/34.

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Hamza, Taha Mohamed. "Doped ZnO nanostructures for Mid Infrared plasmonics." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEC051/document.

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L'objectif de ce travail est de réaliser des substrats pour l’effet SEIRA (surface enhanced IR absorption) pour mesurer de faibles volumes de gaz ambiants possédant une signature moléculaire de 3,3 μm à 5,1 μm en exploitant la forte amplification de champ électrique due à la résonance plasmon de surface localisés. A cette fin, nous avons démontré la modulation des résonances de plasmon de surface localisées MIR (LSPR) dans les nanocristaux de ZnO dopés (NCs) dopés à Ga ou Al ainsi que dans des nanofils (NWs) de ZnO dopés Ga (GZO) et dans des nanofils coeur/coquille de ZnO/GZO. En ce qui concer

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Steuwe, Christian. "Nonlinear photonics in biomedical imaging and plasmonics." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708016.

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Cantono, Giada. "Relativistic Plasmonics for Ultra-Short Radiation Sources." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS353/document.

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La plasmonique étudie le couplage entre le rayonnement électromagnétique et les oscillations collectives des électrons dans un matériel. Les plasmons de surface (SPs), notamment, ont la capacité de concentrer le champ électromagnétique sur des distances micrométriques, ce qui les rend intéressants pour le développement des dispositifs photoniques les plus novateurs. 'Etendre l'excitation de SPs au régime de champs élevés, où les électrons oscillent à des vitesses relativistes, ouvre des perspectives stimulantes pour la manipulation de la lumière laser ultra-intense et le développement de sourc

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TORRE, IACOPO. "Hydrodynamics and plasmonics in two-dimensional materials." Doctoral thesis, Scuola Normale Superiore, 2018. http://hdl.handle.net/11384/85904.

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This Thesis is devoted to the study of two different aspects of electron behavior in two-dimensional materials, namely hydrodynamic electron transport and plasmon propagation. The Thesis is structured as follows. In Chapter 1 the main experimental facts that motivated our work on electron hydrodynamics and plasmonics are presented and critically discussed. Chapter 2 contains our main results on hydrodynamic electron transport. After deriving the basic equations of the electron hydrodynamics and discussing their limit of applicability, we use them to quantify the impact of two different tr

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Otomalo, Tadele. "Ultrafast optical response of complex plasmonic nanoparticles." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC102.

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Les propriétés remarquables associées à la résonance plasmon localisée (LSPR) dans les nanoparticules (NP) de métaux nobles font de la plasmonique un sujet aux applications multiples. Lorsque les NP sont éclairées par des impulsions laser ultracourtes, une dynamique rapide d'échanges d'énergie conduit à la variation ultrarapide de leurs propriétés optiques, accompagnée d’autres effets comme la photoluminescence, l’échauffement hyperlocalisé, la photoémission électronique, la production de radicaux libres, la nano-cavitation. La conception de nanostructures hybrides complexes permet d'adapter l

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Rolly, Brice. "Subwavelength photonic resonators for enhancing light-matter interactions." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4366.

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Les antennes optiques sont des structures qui permettent de convertir, dans les deux sens, l'énergie électromagnétique entre un faisceau lumineux et une source (ou un absorbeur) localisée en son sein. L'utilisation de résonateurs de taille inférieure à la longueur d'onde permet de réaliser cette fonction de manière efficace, sur une bande spectrale relativement étendue, et d'avoir une antenne compacte.La bonne connaissance des propriétés optiques de ces résonateurs, pris séparément, et de leurs couplages entre eux, est nécessaire pour pouvoir proposer des designs d'antenne efficaces.Dans cette

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Beránek, Jiří. "Povrchové plazmonové rezonance na koloidních nanočásticích." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230613.

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The presented diploma thesis is focused on the Localized Surface Plasmons (LSP). The far-field optical response of the colloidal solutions of gold nanoparticles caused by LSP was investigated and compared with the numerical calculations. For the simulations, the Discrete Dipole Approximation (DDA) and Finite-Difference Time Domain (FDTD) techniques were employed. In particular, the shape and size effects of spherical particles and nanorods were studied. The simulations performed by both methods are in a good agreement for the spheres. For the nanorods, the resonance was found to be affected ma

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