The study of the dynamics in the optical lattice needs to be done firstly in the classical limit. In the first part of this thesis, the interest of a droplet-based SPR set-up was shown. Then, we report an experimental demonstration of the MI process in this kind of fiber. Microcavity polaritons is an excellent platform to study these phenomena it is in this system that the first observation of superfluidity of light was observed.
From the theoretical point of view, the key ingredients are well known: Different kinds of semiconductors CdS, PbS and metallic Au, Ag nanoparticles incorporated inside the porous SiO2 matrix have been precipitated with the assistance of laser irradiation at room temperature or by an annealing process. Besides, the doping of glassy matrices with copper nanoparticles allows foreseeing their use in the core of microstructured optical fibres. In the focusing regime, we observe coherent structures similar to solitons on finite background that are now considered as prototypes of rogue waves.
Some global deformations are observed, together with some local instabilities that affect only a fraction of the cloud. The multi-layers oxides films produced were obtained without cracks and with low roughness. Nonlinearities in semiconductor and dielectric materials modify the properties of light to the point of making it behave as a dense fluid. First part of this work was dedicated to setup a system allowing desolvation of material clusters formed in the MALDI process by using a second laser to intercept the expanding plume.
The thin films were prepared by sol-gel process and deposited by spin-coating technique on silicon and glass substrates. For further details, click here. In the focusing regime, we observe coherent structures similar to solitons on finite background that are now considered as prototypes of rogue waves.
The thin films were prepared by sol-gel process and deposited by spin-coating technique on silicon and glass substrates. The local generation of nanoparticles could be performed directly on the surface of the silica xerogel using a visible continuous laser or inside the volume of the matrix by a femtosecond laser irradiation. It exhibits the strong couplings between the directions of the trap, with the result that it cannot be used to reduce the number of directions in which instabilities grow up.
In this thesis, porous silica monoliths produced via the sol-gel process were doped and densified. Nonlinearities in semiconductor and dielectric materials modify the properties of light to the point of making it behave as a dense fluid.
Posted by: Zolokree | on October 2, 2012
In the focusing regime, we observe coherent structures similar to solitons on finite background that are now considered as prototypes of rogue waves. Some knowledge of non-linear dynamics is welcome.
However, this study can be considered as a new step to a better 3D description of the MOT physics. Despite the fact that sol-gel process is not well-developed in the photovoltaic field, the obtained results show that sol-gel process is a well-adapted technique for elaboration of thin films with chalcopyrite and kesterite structures.
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