Sökning: "Particle Plasmon"

Visar resultat 26 - 30 av 31 avhandlingar innehållade orden Particle Plasmon.

1. 26. Multicomponent Resonant Nanostructures: Plasmonic and Photothermal Effects

   Författare :Vadim Zakomirnyi; Hans Ågren; Zilvinas Rinkevicius; Sergey Karpov; Davy Gérard; KTH; []
   Nyckelord :plasmonics; photonics; nanoparticles; Teoretisk kemi och biologi; Theoretical Chemistry and Biology;

   Sammanfattning : In recent decades, plasmonic nanoparticles have attracted considerable attention due to their ability to localize electromagnetic energy at a scale much smaller than the wavelength of optical radiation. The study of optical plasmon waveguides (OPWs) in the form of chains of nanoparticles is important for modern photonics. LÄS MER

3. 27. Alloy Plasmonics - Fundamentals and Applications

   Författare :Christopher Tiburski; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; sensing; gold-palladium; nanothermometry; palladium-hydride; nanoalloys; photothermal; plasmonics; CO oxidation; heterogeneous catalysis; dielectric function;

   Sammanfattning : Alloys have for a long time been important in the development of our society; from the Bronze Age, where man learned how to alloy copper with tin, to today, where many products are made of steel and aluminum alloys. Similarly, but maybe not as generally well known, alloys have lately been proposed as a new paradigm in nanophotonics, to tailor optical properties of nanomaterials that find applications within telecommunication, sensing, or biotechnology. LÄS MER

4. 28. Dynamics of Enzymes at Interfaces : Lipase adsorption and mobility on solid surfaces

   Författare :Andreas Sonesson; Hjalmar Brismar; Robert Tilton; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biophysics; surface chemistry; diffusion; enzymes; lipases; adsorption; mobility; Physics; Fysik;

   Sammanfattning : This thesis aimed to give more insight in the dynamics of enzymes at interfaces. The adsorption and mobility of adsorbed proteins can e.g. give a better understanding of structure-function properties of interfacially active enzymes. LÄS MER

5. 29. Tinkering with Light at the Nanoscale using Plasmonic Metasurfaces and Antennas: From Fano to Function

   Författare :Mikael Svedendahl; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biosensing; Fano resonances; metamaterials; Surface plasmons;

   Sammanfattning : Surface plasmons are charge density oscillations that can couple strongly to light and be excited in, for instance, thin metal films and metal nanoparticles. The plasmonic excitation squeezes the light down to nanometric length scales, far smaller than the wavelength of the light. LÄS MER

7. 30. Microstructure of Zirconium Alloys Oxidized in Steam

   Författare :Pia Tejland; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EDX; ADF; TEM; Zircaloy-2; FIB-SEM; STEM; GD-OES; SPP; SEM; Zirconium; HAADF;

   Sammanfattning : Zirconium alloys are widely used in nuclear reactors as fuel cladding tubes because of their low thermal neutron capture cross-section, good corrosion properties and satisfactory mechanical properties. However, the main limiting factor of these materials is the oxidation behavior. LÄS MER