Sökning: "Localized Surface Plasmon Resonances"

Visar resultat 11 - 15 av 25 avhandlingar innehållade orden Localized Surface Plasmon Resonances.

1. 11. Nanoplasmonic Structures for Bio/Chemo Sensing

   Författare :Tomas Rindzevicius; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; surface-enhancement; biorecognition; nanostructures; surface plasmons; nanoholes.; biosensing;

   Sammanfattning : Localized surface plasmon resonances (LSPR's) in noblemetal nanostructures are sensitive to refractive index changes close to the metal surface, and the LSPR's can therefore be utilized to sense molecular binding reactions. This thesis focuses on fundamental properties and proof-of-principle sensing studies of nanoplasmonic structures relevant for molecular detection. LÄS MER

3. 12. Strong Light-Matter Interactions and Formation of Hybrid States at the Nanoscale

   Författare :Martin Wersäll; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; coherent interactions; localized surface plasmon resonances; strong coupling;

   Sammanfattning : Noble metallic nanoparticles, which support localized surface plasmon resonances (LSPR), offer a variety of potential scientific and industrial utilizations. Due to their remarkable ability to confine light at nanoscale dimensions, far below the optical diffraction limit, plasmonic nanoparticles enable intricate light manipulations, which may be performed and exploited for a wide range of future revolutionary applications. LÄS MER

4. 13. Photoelectrochemical Processes on Fe2O3 Based Model Anodes

   Författare :Beniamino Iandolo; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Near- field Enhancement; Hydrogen; Hematite; Water Splitting; Flatband Potential; Surface States.; Localized Plasmons; Nanoparticles;

   Sammanfattning : One possibility to partially satisfy the ever-increasing energy needs of modern society, without compromising the Earth’s environment through e.g. global warming, consists in harvesting solar energy and storing it as hydrogen produced from water splitting. This can potentially be achieved on a large scale using photoelectrochemical (PEC) cells. LÄS MER

5. 14. Nanoplasmonic Sensing for Materials Science

   Författare :Markus Schwind; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Freezing Melting Phase Transition; Localized Surface Plasmon Resonances; Optical Spectroscopy; Nanoparticles; Aluminum; Copper; Thin Films; Metal Oxidation and Corrosion; Quartz Crystal Microbalance with Dissipation Monitoring; Tin;

   Sammanfattning : With the rising importance of nanoscience and nanotechnology, there is a need for new sensitive and easy-to-use characterization techniques able to follow processes at the nanoscale. In this thesis different aspects of nanoplasmonic sensing for studying materials science processes at the nanoscale are demonstrated and discussed for the following model systems: oxidation/corrosion of Al and Cu and the solid-liquid phase transition of Sn. LÄS MER

7. 15. Effects of surface plasmons in subwavelength metallic structures

   Författare :Srinivasan Iyer; Ari T. Friberg; N. Asger Mortensen; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; suface plasmons; extraordinary transmission; metamaterials; shnets; split-ring resonators; plasmon-induced EIT; optical antennas; plasmonics;

   Sammanfattning : 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. LÄS MER