Sökning: "nanowire mechanics"

Hittade 5 avhandlingar innehållade orden nanowire mechanics.

  1. 1. Optical Imaging for Nanowire Mechanics

    Författare :Monica Lexholm; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; sensor applications; optical imaging; nanowire mechanics; Fysicumarkivet A:2010:Lexholm;

    Sammanfattning : In this work, we present a stroboscopic detection technique for the study of oscillating nanoscale objects. This optical read-out gives a position accuracy better than 1 nm which is a fraction of both the diffraction limit and the pixel size. LÄS MER

  3. 2. Quantum Devices from the Assembly of Zero- and One-Dimensional Building Blocks

    Författare :Claes Thelander; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantum devices; classical mechanics; quantum mechanics; relativity; statistical physics; thermodynamics; Matematisk och allmän teoretisk fysik; klassisk mekanik; kvantmekanik; relativitet; gravitation; termodynamik; statistisk fysik; Mathematical and general theoretical physics; single-electron transistor; nanowires; AFM; carbon nanotubes; Fysicumarkivet A:2003:Thelander;

    Sammanfattning : This thesis describes novel methods for the fabrication of nanometer-scale electronic devices, such as single-electron transistors and resonant tunneling diodes, from wire- and dot-shaped building blocks. The first part of the thesis describes the manipulation of metal nanoparticles and carbon nanotubes using an atomic force microscope. LÄS MER

  4. 3. The mechanics in two nanosized systems : Size effect and threshold field

    Författare :Martin Olsen; Håkan Olin; Ulf Lindefelt; Sven Öberg; Mittuniversitetet; []
    Nyckelord :;

    Sammanfattning : This thesis investigates the mechanics in two nanosized system. Paper I investigates a size effect in a cantilever nanowire affecting its resonance frequency. Paper II reveals a threshold field for the formation of a mound by the diffusion of surface atoms on a substrate under a STM-tip. LÄS MER

  5. 4. Nanomechanics – Quantum Size Effects, Contacts, and Triboelectricity

    Författare :Martin Olsen; Jonas Örtegren; Håkan Olin; Per Gradin; Peter Glans; Rusen Yang; Mittuniversitetet; []
    Nyckelord :triboelectricity; adatom; ion; charge; mound; quantum size effect; triboelctric nanogenerator; TENG; wind driven; contact; nanomechanics; fri electron model; nanowire cantilever;

    Sammanfattning : Nanomechanics is different from the mechanics that we experience in everyday life. At the nano-scale, typically defined as 1 to 100 nanometers, some phenomena are of crucial importance, while the same phenomena can be completely neglected on a larger scale. LÄS MER

  7. 5. Semiconductor Quantum Optics at Telecom Wavelengths

    Författare :Katharina Zeuner; Val Zwiller; Klaus D. Jöns; Stephan Reitzenstein; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Optik och fotonik; Optics and Photonics;

    Sammanfattning : Quantum technologies are an expanding field in physics and engineering concerning the development of protocols and devices that enable augmented or novel applications based on quantum mechanics. This includes amongst others quantum computation and quantum communication. LÄS MER