Search for dissertations about: "Optical measurements"

Showing result 16 - 20 of 767 swedish dissertations containing the words Optical measurements.

  2. 16. Atomic transport in optical lattices

    Author : Henning Hagman; Claude Dion; Daniel Comparat; Umeå universitet; []
    Keywords : Ultra-cold atoms; optical lattice; laser cooling; directed transport; Brownian motor; Brownian motion;

    Abstract : This thesis includes both experimental and theoretical investigations of fluctuation-induced transport phenomena, presented in a series of nine papers, by studies of the dynamics of cold atoms in dissipative optical lattices. With standard laser cooling techniques about 108 cesium atoms are accumulated, cooled to a few μK, and transferred into a dissipative optical lattice. READ MORE

  4. 17. Optical Monitoring of Cerebral Microcirculation

    Author : Peter Rejmstad; Karin Wårdell; Göran Salerud; Neda Haj-Hosseini; Kerstin Ramser; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optical monitoring; cerebral microcirculation; diffuse reflectance spectroswcopy DRS ; laser Doppler flowmetry LDF ;

    Abstract : The cerebral microcirculation consists of a complex network of small blood vessels that support nerve cells with oxygen and nutrition. The blood flow and oxygen delivery in the microcirculatory blood vessels are regulated through mechanisms which may be influenced or impaired by disease or brain damage resulting from conditions such as brain tumors, traumatic brain injury or subarachnoid hemorrhage (SAH). READ MORE

  5. 18. Optical Diagnostic Techniques Applied in Practical Combustion Devices and Processes

    Author : Joakim Rosell; Förbränningsfysik; []
    Keywords : Optical diagnostics; LIF; OH; CO; CH2O; CH; Optical Engines; Fysicumarkivet A:2016:Rosell;

    Abstract : Optical measurement techniques have proven to be useful tools for studying combustion-related phenomenon. The fact that the techniques are optical facilitates performing the measurements without impinging upon the measurement object, such as the combustion event that can be involved. READ MORE

  6. 19. Optical modelling of conjugated polymers : from materials to devices

    Author : Nils-Krister Persson; Andy Monkman; Linköpings universitet; []
    Keywords : Spectroscopic ellipsomctry; optical modelling; organic solar cell; conjugated polymer; polyfluorene; polythiophene; copolymer; fullerene blend; photovoltaic device; dielectric function; NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : Measurements and modelling of theoretical properties of polymer-based photovoltaic devices, PPVDs, are the subjects of this thesis. Modelling refers both to modelling of materials, based on extraction of the dielectric function, and to modelling of devices by computer simulation of the optical electrical field inside PPVDs. READ MORE

  7. 20. Nanocrystalline Tungsten Trioxide Thin Films : Structural, Optical and Electronic Characterization

    Author : Malin Johansson; Lars Österlund; Gunnar A. Niklasson; Juan Morante; Uppsala universitet; []
    Keywords : tungsten trioxide; nanocrystallin structure; thin films; optical properties; electronic properties; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik;

    Abstract : This thesis concerns experimental studies of nanocrystalline tungsten trioxide thin films. Functional properties of WO3 have interesting applications in research areas connected to energy efficiency and green nanotechnology. READ MORE