Search for dissertations about: "two-photon"
Showing result 1 - 5 of 114 swedish dissertations containing the word two-photon.
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1. Two-Photon Excited Fluorescence Depolarisation : Experimental and Theoretical Development
Abstract : We have studied fundamental aspects of time-resolved two-photon excited fluorescence depolarisation. The thesis presents experimental as well as theoretical progress. READ MORE
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2. Study of Two-Photon processes at low Q2 using the VSAT calorimeter in the DELPHI experiment
Abstract : The study is based on data collected at the LEP II accelerator during the second period of the Large Electron-Positron collider operations (1996-2000). During that time the DELPHI (DEtector with Lepton, Photon and Hadron Identification) experiment collected about 90 Gb of data on tape corresponding to 687-691 pb-1 of luminosity. READ MORE
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3. Phase Modulation Two-Photon Microscopy of Hybrid Halide Perovskite
Abstract : Recently, intense research activities have been focused on solution-processed hybrid lead halide perovskite semiconductors which are being developed for the solar-cell, light emitting diode (LED), and lasing applications. To optimize and fabricate a competitive perovskite-based optoelectronic device, the fundamental studies of the electronic structure, photo-generated carrier dynamics as well as the photoluminescence (PL) & photocurrent (PC) response are necessary and of great significance. READ MORE
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4. Circumventing Spectrum Mismatch - Studies of Triplet-Triplet Annihilation Upconversion, Singlet Fission and Two-Photon Absorption in Photoactive Materials
Abstract : Solar energy stands out for its potential to supply the global energy demand by itself. Therefore, it is of great value to expand the use of processes that involve light such as conversion to electricity or fuels, or to drive high-energy reactions. READ MORE
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5. Two-Photon Absorption and Photorefraction in Semiconductors and Ferroelectrics
Abstract : Two-photon absorption spectra of Al0.4Ga0.6As/GaAs quantum wells in static electric fields are investigated experimentally. A drastic field-induced increase in the absorption peaks at energies close to half the bandgap energy is reported for the first time. READ MORE