Search for dissertations about: "Non-linear optics"

Showing result 1 - 5 of 33 swedish dissertations containing the words Non-linear optics.

  1. 1. Non-linear mid-infrared laser techniques for combustion diagnostics

    Author : Anna-Lena Sahlberg; [2016-06-10]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Combustion diagnostics; non-linear; mid-infrared; degenerate four-wave mixing; laser-induced thermal grating spectroscopy; polarization spectroscopy;

    Abstract : .... READ MORE

  2. 2. Theoretical perspectives on ultrafast and non-linear spectroscopy

    University dissertation from Lund University, Faculty of Science, Department of Physics

    Author : Emil Vinas Boström; [2018-05-07]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Non-linear optics; Ultrafast dynamics; Non-equilibrium Green s functions; Density functional theory; Multi-photon absorption; Second harmonic generation; Desorption dynamics; Auger decay; Charge-separation dynamics; Quantum Zeno effect; Fysicumarkivet A:2018:Vinas Boström;

    Abstract : In this thesis we discuss a theoretical description of ultrafast and non-linear spectroscopy. Due to the high intensities and ultrashort pulse durations involved in such experiments, it is necessary to use an explicitly time-dependent formalism. READ MORE

  3. 3. Development and Application of Non-linear Mid-infrared Laser Spectroscopy for Combustion Diagnostics

    University dissertation from Lund University, Faculty of Science, Department of Physics

    Author : Zhiwei Sun; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Degenerate four-wave mixing; Polarization spectroscopy; Mid-infrared; Non-linear laser spectroscopy; Laser diagnostics; Combustion; Flame; HITRAN; Concentration; Temperature; Fysicumarkivet A:2012:Sun;

    Abstract : The work reported in this thesis involved the development and application of two novel infrared non-linear laser techniques, namely mid-infrared polarization spectroscopy (IRPS) and mid-infrared degenerate four-wave mixing (IR-DFWM) to combustion diagnostics. These two techniques meet the needs of species concentration detection in combustion environments, especially for those species lacking accessible electronic (one-photon) transitions in the ultraviolet (UV) or visible spectral region. READ MORE

  4. 4. Development of dual-broadband rotational CARS for applied flame diagnostics

    University dissertation from Combustion Physics, Lund Institute of Technology

    Author : Fredrik Vestin; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Combustion Physics; molecular spectroscopy; Laser Diagnostics; CARS; non-linear optics; rotational Raman scattering;

    Abstract : The thesis work involved the further development of the dual-broadband rotational coherent anti-Stokes Raman spectroscopy (DB-RCARS) approach to applied flame diagnostics. This included the development of new experimental approaches, of new theoretical rotational CARS models, and of new evaluation routines as well as exploration of the potential of DB-RCARS to provide reliable thermometric measurements and measurements of concentration under a variety of conditions common in combustion research. READ MORE

  5. 5. Environmental Monitoring by Multi-Spectral Lidar Techniques

    University dissertation from Department of Physics, Lund University

    Author : Petter Weibring; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; non-linear optics; fluorescence spectroscopy; scattering; multi-spectral imaging; Atom- och molekylärfysik; atmospheric pollution; Atomic and molecular physics; laser; remote sensing; lidar; DIAL; Fysicumarkivet A:2002:Weibring;

    Abstract : Multi-spectral lidar (light detection and ranging) techniques have been developed and employed in various environmental studies, ranging from concentration mapping of volcanic emissions to fluorescence imaging of historical monuments. In both absorption measurements of gaseous species and fluorescence imaging of stones, multiple wavelength excitation and multiple wavelength detection have been applied. READ MORE