Sökning: "Digital Holography"

Visar resultat 1 - 5 av 20 avhandlingar innehållade orden Digital Holography.

  1. 1. Multiplexed Digital Holography incorporating Speckle Correlation

    Detta är en avhandling från Luleå tekniska universitet

    Författare :Davood Khodadad; Luleå tekniska universitet.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Technology byts ev till Engineering ; Teknik; Experimental Mechanics; Experimentell mekanik;

    Sammanfattning : In manufacturing industry there is a high demand for on line quality control to minimize the risk of incorrectly produced objects. Conventional contact measurement methods are usually slow and invasive, meaning that they cannot be used for soft materials and for complex shapes without influencing the controlled parts. LÄS MER

  2. 2. 3D localization in digital holography from scattered light from micrometer-sized particles

    Detta är en avhandling från Luleå : Luleå University of Technology

    Författare :Johan Öhman; Luleå tekniska universitet.; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Digital Holography; Polarization; Particle Scattering; Metrology; Experimentell mekanik; Experimental Mechanics;

    Sammanfattning : When a particle is illuminated by a beam of light it will scatter and redistribute the light in all directions. How it scatters depends on the size, shape and refractive index of the particle. Additionally, it depends on the wavelength and polarization of the illuminating beam. LÄS MER

  3. 3. Not all those who wander are lost : A study of cancer cells by digital holographic imaging, fluorescence and a combination thereof

    Detta är en avhandling från Department of Biology, Lund University

    Författare :Sofia Kamlund; [2018-09]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Digital holography; longitudinal tracking; breast cancer stem cells; salinomycin; EMT; Digital Holography; longitudinal tracking of individual cells; breast cancer cells; Breast cancer; Salinomycin; cancer stem cells; Fluorescence microscopy; EMT;

    Sammanfattning : Cells are commonly used in research to evaluate toxicity and efficiency of drugs. However, to further increase the usefulness of cells as well as the understandings of effects of different interventions, new methods must constantly be developed and refined. LÄS MER

  4. 4. Pulsed laser ablation studied using digital holography

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Eynas Amer; Luleå tekniska universitet.; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimental Mechanics; Experimentell mekanik;

    Sammanfattning : Pulsed digital holographic interferometry has been used to study the plume and the shock wave generated in the laser ablation process on different targets under atmospheric air pressure. A pulsed Nd-YAG laser system (pulse duration 12 ns) has been used both for ablating the material (wavelength 1064 nm) and for measurement (wavelength 532 nm). LÄS MER

  5. 5. Digital holography and image processing methods for applications in biophysics

    Detta är en avhandling från Umeå : Umeå University

    Författare :Hanqing Zhang; Umeå universitet.; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Digital holographic microscopy; image processing; image reconstruction; bacterial adhesion; cell morphology; algorithm development; software design; quantitative measurement; microfluidics; multidisciplinary research; Signal Processing; signalbehandling; Technical Physics; teknisk fysik med inriktningen mikrosystemteknik;

    Sammanfattning : Understanding dynamic mechanisms, morphology and behavior of bacteria are important to develop new therapeutics to cure diseases. For example, bacterial adhesion mechanisms are prerequisites for initiation of infections and for several bacterial strains this adhesion process is mediated by adhesive surface organelles, also known as fimbriae. LÄS MER