Search for dissertations about: "Laser"

Showing result 21 - 25 of 1843 swedish dissertations containing the word Laser.

  2. 21. Laser Spectroscopic Techniques for Combustion Diagnostics Directed Towards Industrial Applications

    Author : Hans Seyfried; Förbränningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Teknik; Technological sciences; Fysik; Physics; Combustion; Gas turbine; HCCI; Engine; High-Speed; Thermographic phosphors; PLIF; LIF; Laser Diagnostics; Laser-Induced Fluorescence; Laser technology; Laserteknik; Motors and propulsion systems; Motorer; framdrivningssystem;

    Abstract : In the work presented in the thesis, different laser spectroscopic techniques were utilized for measurement of species concentrations, as well as for surface thermometry. Experiments were conducted in various combustion environments, ranging from laboratory burners to truck-sized internal combustion (IC) engines, gas turbine combustors and a full-size aircraft turbofan engine. READ MORE

  4. 22. Coherent CO2 laser radar in active imaging systems

    Author : Dietmar Letalick; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Q-switching; atmospheric turbulence; coherent laser radar; terrain segmentation; heterodyne detection; range-based object detection; imaging laser radar; co2 laser;

    Abstract : .... READ MORE

  5. 23. Laser-Driven Plasma Waves for Particle Acceleration and X-ray Production

    Author : Guillaume Genoud; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Laser plasma acceleration of electrons and protons; laser-wakefield acceleration; plasma waves; plasma-wiggler radiation; betatron radiation; laser guiding; laser pointing stabilisation;

    Abstract : This thesis presents experimental results related to laser plasma accelerators. These rely on very different principles from conventional particle accelerators. READ MORE

  6. 24. Target and Laser Pulse Optimization for Laser-Driven Ion Acceleration

    Author : Alexander Permogorov; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Terawatt laser; Target normal sheath acceleration; laser-driven ion acceleration; proton acceleration; double plasma mirror; Thomson parabola spectrometer; Fysicumarkivet A:2021:Permogorov;

    Abstract : The research presented in this thesis is primarily focused on experimental investigations of laser-driven ion acceleration from solid targets via the target normal sheath acceleration mechanism. In particular, ways of optimizing the absorption of the laser pulse energy by free plasma electrons in the target, or modifying the shape of the accelerating electron sheath were addressed. READ MORE

  7. 25. Laser treatment in glaucoma : efficacy and safety

    Author : Erika Rasmuson; Gauti Jóhannesson; Christina Linden; Björn Lundberg; Mika Harju; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; glaucoma; laser treatment; intraocular pressure; glaucoma treatment; glaukom; laserbehandling; ögontryck; glaukombehandling; oftalmiatrik; ophthalmology; oftalmiatrik; ophthalmology;

    Abstract : Glaucoma is a progressive optic neuropathy and the major cause of irreversible blindness worldwide. Although the pathogenesis of glaucoma is not completely understood, the most important risk factor for development and progression of the disease is an elevated intraocular pressure (IOP). READ MORE