Sökning: "Localized surface plasmon"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Localized surface plasmon.

  1. 1. Numerical simulations of ultrafast dynamics in plasmonic nanostructures

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Nils Henriksson; [2023]
    Nyckelord :Ultrafast nanophotonics; Three temperature model; Numerical simulations;

    Sammanfattning : Plasmonic effects in nanosized particles enhance the interaction between light and matter due to the localized surface plasmon resonance, with potential applications such as all-optical transistors and optical computers. Commonly, the dynamics of nanoparticles’ optical properties are assessed via pump-probe spectroscopy, where a plasmonic structure is exited by an initial laser, the pump. LÄS MER

  3. 2. Impact of nanoparticle plasmons on photoluminescense and upconversion processes in ZnO

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Solcellsteknik; Uppsala universitet/Fysikalisk kemi

    Författare :Axel Gudmundsson; [2023]
    Nyckelord :Photoluminescence; Upconversion; Plasmons; ZnO;

    Sammanfattning : The increasing prevalence of glass windows in modern buildings has raised the demand for solar control windows that possess climate-appropriate properties. Glass windows made of abundant and low-cost materials which can both decrease the heating energy consumption as well as enhance the light climate indoors would sufficiently meet the goals of economical yet uplifting buildings. LÄS MER

  4. 3. Interactions of the Human Recombinant Proteins JUNO and IZUMO1

    Kandidat-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Emma Lundell; [2020]
    Nyckelord :male infertility; surphace plasmon resonance; protein interactions; gold nanoparticles; protein immobilization; manlig infertilitet; ytplasmonresonans; proteininteraktioner; guldnanopartiklar; proteinimmobilisering;

    Sammanfattning : Det uppskattas att 15% av alla par världen över lider avinfertilitet. Ungefär hälften beror på manlig infertilitet och 40% av dessa fall kan ännu inte förklaras. Därmed är nuvarande metoder för att diagnostisera manlig infertilitet otillräckliga och ytterligare tekniker behövs. LÄS MER

  5. 4. Fabrication and Optimization of a Nanoplasmonic Chip for Diagnostics

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Jonas Segervald; [2019]
    Nyckelord :AFM; NIL; SPR; SERS; nanohole; nanohole array; nanoimprint lithography; physical vapor deposition; plasma treatment; plasmonic; plasmons; surface plasmon resonance; localized surface plasmon resonance; metal enhanced fluoresence; surface enhanced raman spectroscopy; transmittance; nanoplasmonic; signal enhancement;

    Sammanfattning : To increase the survival rate from infectious- and noncommunicable diseases, reliable diagnostic during the preliminary stages of a disease onset is of vital importance. This is not trivial to achieve, a highly sensitive and selective detection system is needed for measuring the low concentrations of biomarkers available. LÄS MER

  7. 5. Towards a tunable nanometer thick flat lens

    Magister-uppsats, Uppsala universitet/Materialfysik

    Författare :Hugo Laurell; Johan Hillborg; [2018]
    Nyckelord :Metamaterial; COMSOL; Fano resonances; Surface plasmon polariton; Localized surface plasmons; Nanophotonics;

    Sammanfattning : This report examines the cross sections of silver microresonators subjected to an incident light with different polarization. The microresonators had different geometries with and without broken symmetries. LÄS MER