Essays about: "gold nanoparticles"

Showing result 1 - 5 of 41 essays containing the words gold nanoparticles.

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

    University essay from Umeå universitet/Institutionen för fysik

    Author : Nils Henriksson; [2023]
    Keywords : Ultrafast nanophotonics; Three temperature model; Numerical simulations;

    Abstract : 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. READ MORE

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

    University essay from Uppsala universitet/Solcellsteknik; Uppsala universitet/Fysikalisk kemi

    Author : Axel Gudmundsson; [2023]
    Keywords : Photoluminescence; Upconversion; Plasmons; ZnO;

    Abstract : 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. READ MORE

  4. 3. Electromagnetic Heating of Coated Ellipsoidal Gold Nanoparticles in Biological Tissue at Radio Frequencies

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Olle Hennert; Robert Themptander; [2023]
    Keywords : ;

    Abstract : Radiofrequency heating of gold nanoparticles for use in remote hyperthermia cancer treatment has seenrapidly growing interest in the last decade. While most of the focus has been on studying sphericalnanoparticles, a recent report suggests ellipsoidal particles can significantly increase heat absorption. READ MORE

  5. 4. Simulation of Microwave Heating of Healthy and Cancerous Human Tissue With Gold Nanoparticles

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Hampus Carlens; Mika Söderström; [2022]
    Keywords : Gold nanoparticle GNP ; Electrophoretic resonance; Dispersive permittivity; Cancer treatment; Waveguide; Radiotherapy; Graded material.;

    Abstract : With a great need for new and better cancer treatments, microwaves and gold nanoparticles (GNPs) are increasingly being suggested to be used in radiotherapy. In thisreport, the authors present an investigation of how human tissue,both malignant and healthy, behaves under microwave radiation. READ MORE

  6. 5. Geometry Dependent Optimal Bounds of Absorption and Scattering Cross-section for Small Nanoparticles

    University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Author : Md Shabbir Hossain Khan; [2022]
    Keywords : Scattering; Absorption; Nanoparticle; Cross-section; Mie; Electromagnetic; FDTD; dipole; Wavenumber.;

    Abstract : Light-matter interaction in particles of subwavelength size mostly depends on the size, shape, composition of the particles and relies on the properties of incident light. Henceforth, resonant behavior of light can be effectively controlled by changing the aforesaid geometrical parameters. READ MORE