Sökning: "Nanostructures"

Visar resultat 1 - 5 av 67 uppsatser innehållade ordet Nanostructures.

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. Water-based Synthesis of Superparamagnetic X-ray Fluorescent Contrast Agents

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Daniel Cortés García; [2022]
   Nyckelord :Nanoparticles; SPIONs; XFCT; co-precipitation.; Nanopartiklar; SPIONs; XFCT; samfällning;

   Sammanfattning : Nowadays, nanomedicine is one of the most important application areas fornanoparticles (NPs), where the design and synthesis of new hybrid nanostructures have attracted much interest, when combining properties and functionalities from different constituents. For example, they have been extensivelyused for dual-mode imaging. LÄS MER

4. 3. Towards a Cooper pair splitter in InAs nanowires with crystal-phase defined quantum dots

   Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Lunds Tekniska Högskola

   Författare :Louise Olausson; [2022]
   Nyckelord :Cooper pair splitter; quantum dot; nanowire; superconductivity; InAs; crystal-phase; Physics and Astronomy;

   Sammanfattning : Cooper pair splitting (CPS) is a process in which the two spin-entangled electrons of a Cooper pair in a superconductor are split into two spatially separated electrons. If the separated electrons are still entangled, CPS can be studied to increase the knowledge of non-locality in quantum systems. LÄS MER

5. 4. Light-activated gas sensing with copper oxide micro- and nanostructures

   Kandidat-uppsats, KTH/Fysik

   Författare :Gabriel Yousef; Carl Persson; [2022]
   Nyckelord :Gas sensors; Gas sensing; Light-activation; Copper oxide; Cuprous Oxide; Nanomaterials;

   Sammanfattning : Metal oxide semiconductor (MOS) gas sensors have proven to be useful in many applications, ranging from detection of hazardous gases to monitoring of air quality. The demand for power efficient and high performance gas sensors has seen an increase in situations facing contemporary society. LÄS MER

7. 5. Probing magnetic Dynamics inNanoarrays using AC susceptibility

   L3-uppsats, Uppsala universitet/Materialfysik

   Författare :Tobias König; [2020]
   Nyckelord :;

   Sammanfattning : This project revised a magneto-optical ac susceptometer aiming to improve the experimentalapproach to investigate the magnetization dynamics of magnetic nano arrays.First the experimental setp was equipped with a new Helmholtzcoil which enables strongerAC magnetic eld compared to the installed coils on the system. That includes i.e. LÄS MER