Search for dissertations about: "coherence length"

Showing result 1 - 5 of 37 swedish dissertations containing the words coherence length.

  2. 1. Electronic and Vibrational Coherence in Photosynthetic and Model Systems

    Author : Mirianas Chachisvilis; Kemisk fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Kemi; Chemistry; Ultrafast relaxation; Porphyrins; Delocalization; Anisotropy; Wavepacket; Vibrational Coherence; Excitons; Electronic coherence; Energy transfer; Femtosecond spectroscopy; Photosynthesis;

    Abstract : Ultrafast optical response and excitation energy dynamics in light harvesting pigment-protein complexes and in a few model systems have been studied both experimentally and theoretically. Femtosecond light pulses were employed to excite the system and monitor the subsequent time evolution of the transient absorption kinetics and anisotropy. READ MORE

  4. 2. Retinal ganglion cell examination with Optical Coherence Tomography reflects physiological and pathological changes in the eye and the brain

    Author : Abbas Al-Hawasi; Neil Lagali; Yumin Link; Per Fagerholm; Per Söderberg; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Retinal ganglion cell; Retinal nerve fiber layer; Optical Coherence Tomography;

    Abstract : The retinal ganglion cell is situated in the inner retina and its axons, composing the retinal nerve fiber layer (RNFL), leave the eye to form the optic nerve. These cells develop embryologically from the forebrain and later during development re-establish connections with different parts of the brain serving different purposes. READ MORE

  5. 3. Effects of Coherence and Correlations on Transport through Nanostructures

    Author : Olov Karlström; Matematisk fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:2012:Karlström;

    Abstract : This dissertation deals with the effects of coherence and correlations on transport through nanostructures. Simulations are mainly performed using the second order von Neumann approach, a method capable of dealing with these effects in the presence of higher order tunneling. READ MORE

  6. 4. Structured Light for Ultrafast Videography

    Author : Vassily Kornienko; Förbränningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Structured Light; FRAME; Coherence Lifetime Imaging; Optical Diagnostics; Ultrafast Videography; Strukturerad Belysning; FRAME; Koherent Livstidsavbildning; Optisk diagnostik; Ultrasnabb videografi;

    Abstract : Monitoring natural events at ultrafast timescales is a prerequisite for our continued understanding of physical, chemical and biological processes. Due to exponential advancements in knowledge and optical technology, the field of ultrafast videography has seen a sudden uptick in activity beginning in the mid-2010s. READ MORE

  7. 5. The effect of therapeutic and Nd:YAG laser as an adjunct treatment modality in periodontal therapy

    Author : Talat Qadri; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Low level laser; Nd:YAG laser; protease activity; coherence length; periodontal inflammation; cytokines; scaling and root planing.;

    Abstract : Laser irradiation has been proposed as an adjunct to conventional scaling and root planing in the treatment of periodontitis. However, the reported outcomes of studies to date are contradictory and the literature provides limited evidence to support an additional benefit of laser application. READ MORE