Sökning: "Intensity interferometry"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Intensity interferometry.

  1. 1. Characterization of surface defects caused by ultrasonic cleaning of aluminium

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

    Författare :Emanuel Eriksson; [2022]
    Nyckelord :Ultrasonic cleaning; surface cleaning; metal; aluminium; 7050; 2050; defects; surface defects; Energy Dispersive Spectroscopy; Scanning Electron Microscopy; Vertical Scanning Interferometry;

    Sammanfattning : This master thesis studies the behaviour of two aluminium alloys in ultrasonic cleaning at two different intensities, as well as the effect of a cleaning solution, Formula 815 GD-NF on the same surface have been studied with respect to surface roughness and material composition. Methods like Light Optical Microscopy (LOM), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and 3D topography using white light interferometry (VSI) was used to study the surface and material composition. LÄS MER

  3. 2. Seeing Stars - Intensity Interferometry in the Laboratory and on the Ground

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Colin Carlile; [2021]
    Nyckelord :Stellar Physics Instrumentation Interferometry Cherenkov Telescope Array Intensity Interferometry; Physics and Astronomy;

    Sammanfattning : Context Since the time of Tycho Brahe astronomy has been an observing science defined by the quality of its instrumentation. The introduction of primitive telescopes by Galileo in 1609 began a period of development of ever-larger telescopes with greater measuring precision. LÄS MER

  4. 3. Pulsed Laser Beam Quality Assessment via Phase Retrieval

    Master-uppsats, Lunds universitet/Atomfysik

    Författare :Mattias Ammitzböll; [2021]
    Nyckelord :GSA; phase retrieval; Gerchberg-Saxton; femtosecond; pulsed; laser; beam quality; attosecond; interferometry; Physics and Astronomy;

    Sammanfattning : In the search for a better understanding of the fundamental nature of the atom, the development of femtosecond pulsed laser sources has opened up for many applications, in particular in time-resolved physics. For many of those, like the generation of attosecond pulses through high-order harmonic generation, high intensity is needed and the quality of the beam is a critical factor. LÄS MER

  5. 4. Interferometric Charecterization of Supersonic Gas-Jets for Laser Wakefield Acceleration

    Kandidat-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Författare :Jonatan Henriksson; [2016]
    Nyckelord :Interferometry; Laser Wakefield Acceleration; Mach-Zehnder; Gas-Jet characterization; Physics and Astronomy;

    Sammanfattning : The Multi-Terawatt laser at the LLC (Lund Laser Centre) is used to accelerate particles using laser wakefield acceleration. Laser wakefield acceleration is a particle acceleration method that utilizes intense electric fields in plasma created by high intensity laser pulses when passing through gas. LÄS MER

  7. 5. Imaging stellar surfaces with intensity interferometry

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Lagadec Tiphaine; [2014]
    Nyckelord :Interferometry; Intensity interferometry; Second order coherence; Aperture synthesis; High resolution imaging; Stellar surfaces imaging; Cherenkov Telescope Array.; Physics and Astronomy;

    Sammanfattning : Context. Intensity interferometry was invented and used by R.Hanbury Brown and R.Q. LÄS MER