Sökning: "Plasmonic effect"

Visar resultat 1 - 5 av 38 avhandlingar innehållade orden Plasmonic effect.

  1. 1. Photothermal Effect in Plasmonic Nanostructures and its Applications

    Författare :Xi Chen; Min Qiu; Sergey I. Bozhevolnyi; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plasmonic; Photothermal Effect; Silicon Photonics; Gold Nanoparticles; Physics; Fysik;

    Sammanfattning :   Plasmonic resonances are characterized by enhanced optical near field and subwavelength power confinement. Light is not only scattered but also simultaneously absorbed in the metal nanostructures. LÄS MER

  3. 2. Single Copper Nanoparticle Oxidation

    Författare :Sara Nilsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dark-field scattering spectroscopy; single particle; plasmonic nanospectroscopy; plasmonic sensing; transmission electron microscopy; oxidation; nanoscale Kirkendall effect;

    Sammanfattning : Cu nanoparticles are commonly used in microelectronic devices and as catalysts in, for example, methanol synthesis and methanol steam reforming reactions. However, Cu nanoparticles are prone to oxidation. LÄS MER

  4. 3. Electronic paper in color by electrochromic materials and plasmonics

    Författare :Oliver Olsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electrochromism; reflective displays; plasmonic electronic paper; conjugated polymers; structural color; plasmonic;

    Sammanfattning : The most common display today is emissive. It produces its own light and emits it to the viewer's eye. A reflective display, also known as electronic paper, uses ambient light and reflects it to the viewer, just like a newspaper. LÄS MER

  5. 4. Hybrid Plasmonic Devices for Optical Communication and Sensing

    Författare :Xu Sun; Lech Wosinski; Laurent Vivien; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fysik; Physics;

    Sammanfattning : Hybrid plasmonic (HP) waveguides, a multi-layer waveguide structure supporting a hybrid mode of surface plasmonics and Si photonics, is a compromise way to integrate plasmonic materials into Si or SOI platforms, which can guide optical waves of sub-wavelength size, and with relative low propagation loss. In this thesis, several HP waveguides and devices are developed for the purposes of optical communications and sensing. LÄS MER

  7. 5. Plasmonic Nanostructures for Optical Absorption Engineering and Hydrogen Sensing

    Författare :Carl Wadell; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; photocatalysis; metal hydride; alloy nanoparticles; palladium; absorption engineering; plasmon enhanced chemistry; nanoplasmonic sensing; nanoparticle size effects; localized surface plasmon resonance; hydrogen sensing;

    Sammanfattning : Nanoplasmonics concerns the interactions between light and metal nanoparticles. In this thesis nanoplasmonics is used in two different ways: i) to control and enhance light absorption, and ii) for optical hydrogen sensing. LÄS MER