Sökning: "monochromator"

Visar resultat 1 - 5 av 9 uppsatser innehållade ordet monochromator.

  1. 1. Characterizing the energy resolution of Bloch beamline.

    Magister-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Anita Shah; [2020]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The Bloch beamline on 1.5 GeV ring at MAX IV Laboratory is dedicated to measure electronic structure of materials using the technique angle resolved photoelectron spectroscopy (ARPES) and spin resolved photoelectron spectroscopy (spin-ARPES). LÄS MER

  3. 2. Effects of Lattice Strain in Silicon Double Crystal Monochromators

    Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/MAX IV-laboratoriet

    Författare :Johan Eckdahl; [2018]
    Nyckelord :synchrotron radiation physics max iv maxiv monochromator monochromation; Physics and Astronomy;

    Sammanfattning : Silicon double crystal monochromators are standard in modern synchrotron hard X-ray beamlines. Their role is reducing a polychromatic photon beam to a small range of wavelengths, typically within a bandwidth of 0.01-0.1%. LÄS MER

  4. 3. Setup for Micro Photo- and Electro-Luminescence of Optoelectronic Device Structures

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Yuxuan Sun; [2015]
    Nyckelord :Photoluminescence; Photoluminescence setup; Electroluminescence; Optoelectronic device;

    Sammanfattning : Photoluminescence (PL) is an optical emission induced by photon absorption in a material where electrons are excited from the ground state to excited states, then relax to the lowest excited states and recombine radiatively. The PL emission provides vital information on bandgap energy, material purity and crystal quality. LÄS MER

  5. 4. A Numerical Study of the Wavelength Dependence in an Off-Plane XUV Monochromator : Bachelor of Science Degree Thesis

    Kandidat-uppsats, Uppsala universitet/Molekyl- och kondenserade materiens fysik

    Författare :Jonatan Fast; [2015]
    Nyckelord :off-plane; off-axis; xuv.; monochromator; femtosecond; pulse; wavelength dependence; chirp; grating; blazed; specular; reflection; diffraction; grazing; high harmonic generation; hhg; helios; ray tracing; ray trace; numerical; pulse length; temporal resolution; beamfour;

    Sammanfattning : In this thesis the work is based around the HELIOS (High Energy Laser Induced Overtone Source) laboratory, a facility at the Division of Molecular and Condensed Matter Physics at the Department of Physics and Astronomy, Uppsala University, Sweden. HELIOS generates XUV (extreme ultraviolet) photon pulses with energies between 15-70 eV and pulse lengths shorter than 50 fs. LÄS MER

  7. 5. Neutron wavelength estimation on crystal monochromator beamlines

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Anton Eklind Schultz; [2014]
    Nyckelord :Mathematics and Statistics;

    Sammanfattning : The world wide shortage of helium-3 is forcing the development of new detectors for neutron spectroscopy. A candidate for new detector design that consists of multiple detection volumes in depth, in contrast to the traditional single volume helium-3 detector, is being developed at ESS in Lund. LÄS MER