Essays about: "Coherent Diffraction Imaging"

Found 4 essays containing the words Coherent Diffraction Imaging.

  1. 1. Effectiveness of Iterative Algorithms for Recovering Phase in the Presence of Noise for Coherent Diffractive Imaging

    University essay from Göteborgs universitet / Institutionen för fysik

    Author : Henry Wittler; [2023-11-29]
    Keywords : ;

    Abstract : Methods of coherent diffractive imaging (CDI) rely on iterative algorithms to reconstruct the complex exit-surface wave (ESW) of the object being imaged from the measured diffraction intensity only. In this thesis we investigate by simulation the artifacts on reconstruction when noise are present in the measurement. READ MORE

  3. 2. Effects of Ultrafast Ionization in X-ray Coherent Diffraction Imaging

    University essay from KTH/Kemi

    Author : Arezu Sehati; [2023]
    Keywords : Coherent Diffraction Imaging; X-ray Free Electron Lasers; Refractive index; Core-shell nanoclusters; Rare-gas ionization; Koherent Diffraktionsavbildning; Röntgenfrielektronlaser; Brytningsindex; Core-shell-nanokluster; Ädelgasjonisering;

    Abstract : Koherent Diffraktionsavbildning med en intensiv röntgenpuls från en Frielektronlaser har möjliggjort strukturbestämning av isolerade nanopartiklar som inte går att studera med hjälp av konventionella metoder, så som elektronmikroskopi. En mycket kort pulslängd tillsammans med spridningssignalens beroende av objektets elektroniska struktur medför också möjligheten att studera inducerad ultrasnabb dynamik med denna teknik. READ MORE

  4. 3. The sensitivity of the EMC algorithm to the light intensity and amount of diffraction patterns in diffraction experiments

    University essay from Uppsala universitet/Institutionen för fysik och astronomi; Uppsala universitet/Molekylär biofysik

    Author : Johanna Rogvall; [2021]
    Keywords : Diffraction; EMC; coherent diffraction imaging; Condor; XFEL;

    Abstract : To understand the function of macromolecules like proteins it helps to know the structure of the molecule. Coherent diffraction imaging is an emerging method that might be used to figure out the structures of macromolecules. READ MORE

  5. 4. Three-wave Lateral Shearing Interferometry With Partially Coherent Light

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Victor Fors; [2015]
    Keywords : imaging; shearing; interferometry; shear; spatial coherence; phase gradient; quantitative; Technology and Engineering;

    Abstract : This thesis contains an examination of a method for quantitative phase imaging using lateral shearing interferometry. The focus is on how the degree of spatial coherence in the light source effect the image. READ MORE