Search for dissertations about: "Digital holography"

Showing result 1 - 5 of 23 swedish dissertations containing the words Digital holography.

2. 1. Multiplexed Digital Holography incorporating Speckle Correlation

   Author : Davood Khodadad; Pascal Picart; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimental Mechanics; Experimentell mekanik; Technology byts ev till Engineering ;

   Abstract : 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. READ MORE

4. 2. 3D localization in digital holography from scattered light from micrometer-sized particles

   Author : Johan Öhman; Mikael Sjödahl; Per Bergström; Erik Olsson; Torbjörn Löfqvist; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Digital Holography; Polarization; Particle Scattering; Metrology; Experimentell mekanik; Experimental Mechanics;

   Abstract : 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. READ MORE

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

   Author : Sofia Kamlund; Funktionell zoologi; []
   Keywords : 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;

   Abstract : 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. READ MORE

6. 4. Pulsed laser ablation studied using digital holography

   Author : Eynas Amer; Bill O’Neill; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimental Mechanics; Experimentell mekanik;

   Abstract : 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). READ MORE

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

   Author : Hanqing Zhang; Magnus Andersson; Krister Wiklund; Wählby Carolina; Umeå universitet; []
   Keywords : 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; signalbehandling; Signal Processing; teknisk fysik med inriktningen mikrosystemteknik; engineering science with specialization in microsystems technology;

   Abstract : 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. READ MORE