Search for dissertations about: "two-photon excitation"
Showing result 21 - 25 of 33 swedish dissertations containing the words two-photon excitation.
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21. Electron-nuclear Dynamics in Nonlinear Optics and X-ray spectroscopy
Abstract : This thesis is devoted to theoretical studies of the role of nuclear vibrations on nonlinear and linear absorption, pulse propagation, and resonant scattering of light. The molecular parameters needed for the simulations are obtained through suitable quantum chemical calculations, which are compared with available experimental data. READ MORE
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22. Development of Laser-Induced Fluorescence for Precombustion Diagnostics in Spark-Ignition Engines
Abstract : Motivated by a desire to understand and optimize combustion in spark-ignition (SI) engines, laser techniques have been developed for measurement of fuel and residual gas, respectively, in the precombustion mixture of an operating SI engine. The primary objective was to obtain two-dimensional, quantitative data in the vicinity of the spark gap at the time of ignition. READ MORE
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23. Application of Laser Techniques for Combustion Studies
Abstract : The aim for this work has been to increase the applicability of laser spectroscopy techniques for studies of combustion processes, both what regards in-flame experiments, exhaust-gas analysis and remote sensing of the atmosphere. Raman spectroscopy has been used for analysis of exhaust gases from flames, model fires of wood and for inflame measurements. READ MORE
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24. Advanced fluorescence-based fluctuation methods for biosensing
Abstract : In addition to use traditional fluorescence parameters for biological studies,the main focus of this thesis is on the monitoring of photoinduced fluorophoretransient states. These dark states, such as the triplet state, redox states andphotoisomers that are formed upon excitation, are long-lived in comparisonto the fluorescent singlet state and therefor more sensitive to the surroundingenvironment and their sensitivity are to biological relevant conditions. READ MORE
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25. Development and Application of Laser Diagnostics for Studies of Phenomena Related to IC Engine Combustion
Abstract : Various laser diagnostic techniques have been developed and demonstrated for engine, or engine-related measurements. The experimental work is presented in Chapter 3 and in Papers I-VII. In Chapter 3, imaging of soot in a running compression-ignition (CI) is described. READ MORE