Search for dissertations about: "Plasmon"

Showing result 6 - 10 of 234 swedish dissertations containing the word Plasmon.

  2. 6. Exciton-plasmon interactions in metal-semiconductor nanostructures

    Author : Staffan Hellström; Ying Fu; Mikael Käll; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; plasmons; excitons; quantum dots; nanoparticles; FDTD; surface plasmon polaritons; QDIP; quantum dot infrared photodetector; polaritons;

    Abstract : Semiconductor quantum dots and metal nanoparticles feature very strong light-matter interactions, which has led to their use in many photonic applications such as photodetectors, biosensors, components for telecommunications etc.Under illumination both structures exhibit collective electron-photon resonances, described in the frameworks of quasiparticles as exciton-polaritons for semiconductors and surface plasmon-polaritons for metals. READ MORE

  4. 7. Time-resolved plasmonics in designed nanostructures

    Author : Eleonora Lorek; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plasmon; Nanostructure fabrication; High-order harmonic generation; Photoemission electron microscopy; Focused ion beam; Fysicumarkivet A:2016:Lorek;

    Abstract : A metal nanoparticle can be considered as consisting of a base of positive ion cores and a sea of free electrons. When the free electrons are displaced, for example, by an incident electric field, a restoring force acts on the electrons. The electrons may then oscillate back and forth until equilibrium is reached. READ MORE

  5. 8. Building Blocks for the Assembly of Nanostructures

    Author : Tina Gschneidtner; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; molecules; Self-Assembly; sensing; nanoparticles; plasmon;

    Abstract : The natural world and many man made technologies are driven by self-assembly, involving the autonomous organization of individual components as a result of specific local interactions into functional structures. Self-assembly is a platform from which to construct materials with a high complexity, in high precision, with an inbuilt error- correction system due to its dynamic nature. READ MORE

  6. 9. Mechanistic and morphological studies of Aβ amyloid formation using surface plasmon resonance

    Author : Md Tohidul Islam; Anders Olofsson; Ludmilla Morozova-Roche; Vytautas Smirnovas; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; medicinal chemistry; läkemedelskemi; medicinsk biokemi; Medical Biochemistry;

    Abstract : Alzheimer’s disease (AD) is the most common form of dementia and apart from the individual suffering AD also causes a large economic burden for society. AD is associated with progressive neurodegeneration and atrophy of the brain. READ MORE

  7. 10. Surface Plasmon Photonics: From Optical Properties of Nanoparticles to Single Molecule Surface-enhanced Raman Scattering

    Author : Hongxing Xu; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanoparticles; nanostructures; Mie theory; surface plasmon; surface-enhanced Raman scattering; single molecule spectroscopy;

    Abstract : With the rapid development of nanoscience and nanotechnology, surface plasmon photonics using metal nanoparticles and nanostructures gain increasing interest, not only for fundamental scientific studies, but also for electronic, optical, and sensor applications. In the nanoscale, the physical and chemical properties of metallic particles, especially their optical properties, strongly depend on size and shape, as well as on surrounding media and structures. READ MORE