Search for dissertations about: "ultrashort laser pulses"
Showing result 11 - 15 of 39 swedish dissertations containing the words ultrashort laser pulses.
-
11. Studies of Phonons and Phase Transitions by Time-Resolved X-ray Diffraction
Abstract : When light is used to study structures, the wavelength limits the size of the details that can be resolved. Visible light can be used to investigate structures as small as a micrometre in size. To study smaller structures a shorter wavelength is required. READ MORE
-
12. Additive Manufacturing and Integration of 3D MEMS using Ultrafast Lasers and Magnetic Assembly
Abstract : The geometry of MEMS devices is limited by the technologies used to fabricate them. Today, microsystems are manufactured with patterning technologies that allow only for 2D and 2.5D geometries. READ MORE
-
13. Charge carrier dynamics in colloidal quantum dots: Tracking the dance of electrons and holes by ultrashort laser pulses
Abstract : Quantum dots (QDs) are semiconductor nanocrystals with quantum confinement. This thesis uses various time-resolved spectroscopic techniques to study ultrafast charge carrier dynamics in colloidal CdSe quantum dots that are important both from a theoretical point of view and for their relevance for solar cell applications. READ MORE
-
14. Characterization of Ultrashort Pulses And Ultrafast Dynamics of Molecules In the Liquid Phase
Abstract : This thesis reports an alternative method for fully acomplete characterization of the UV pump pulse and white lightcontinuum probe pulse, which is commonly used in the pump-probeexperiments to investigate the ultrafast dynamics of molecules.Besides that, real dynamics of infrared cyanine dye molecules(Methyl-DOTCI) and photo-induced dissociation of trihalide ions(I3-or I2Br-) solvated in different organic solvent has alsobeen carefully investigated. READ MORE
-
15. Creating and Probing Extreme States of Materials : From Gases and Clusters to Biosamples and Solids
Abstract : Free-electron lasers provide high intensity pulses with femtosecond duration and are ideal tools in the investigation of ultrafast processes in materials. Illumination of any material with such pulses creates extreme conditions that drive the sample far from equilibrium and rapidly convert it into high temperature plasma. READ MORE