Search for dissertations about: "Artificial Light"
Showing result 21 - 25 of 153 swedish dissertations containing the words Artificial Light.
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21. Quantum Coherence and Quantum-Vacuum Effects in Some Artificial Electromagnetic Media
Abstract : The author of this thesis concentrates his attention on quantum optical properties of some artificial electromagnetic media, such as quantum coherent atomic vapors (various multilevel electromagnetically induced transparency vapors) and negative refractive index materials, and suggests some possible ways to manipulate wave propagations inside the artificial electromagnetic materials based on quantum coherence and quantum vacuum effects. In Chapters 1 and 2, the author reviews the previous papers on quantum coherence as well as the relevant work such as electromagnetically induced transparency (EIT), atomic population trapping and their various applications. READ MORE
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22. Bilayer Light-Emitting Electrochemical Cells for Signage and Lighting Applications
Abstract : Artificial light surrounds us in a manifold of shapes. It is mainly utilized for illumination, but also for graphical communication of complex and evolving messages and information, among other things. It can be generated in different ways with incandescent lamps and fluorescent tubes constituting two common examples. READ MORE
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23. Light-phyllosphere interactions in greenhouse grown ornamentals
Abstract : Light-emitting diodes (LEDs) have emerged as a promising artificial lighting source in greenhouse production of horticultural crops, as they reduce energy consumption. However, changes in lighting technology are known to affect abiotic and biotic interactions in the phyllosphere, e.g. READ MORE
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24. Applications of Artificial Microcavities in Wafer Bonded Silicon
Abstract : A novel sensor structure has been investigated and extensively studied. The device can be used as a pressure sensor, a voltage measuring device and as an optical modulator. The sensor was made using thermal bonding and micromachining techniques. READ MORE
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25. Methods for performance characterization of artificial molecular motors
Abstract : The overall aim of this thesis work is to characterize artificial biomolecular motors, specifically the Lawnmower, a motor based on the burn bridges mechanism, and the Tumbleweed, a protein motor that employs ligand specific DNA-proteins binding to step along DNA. An overview of their operational principles is given, and initial results of our studies are presented, along with a review of currently available methods to characterize artificial molecular motors. READ MORE