Sökning: "Birefringence microscopy"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Birefringence microscopy.
1. Multimodal Imaging of Anisotropic Hierarchical Materials
Sammanfattning : The thesis is focused on studying the nanostructure of natural and synthetic hierarchical materials with biological applications, using X-ray scattering imaging and birefringence microscopy. The term "hierarchical materials" is used for structures composed of sub-units organised in different length scales that create the building blocks for the next level. LÄS MER
2. Study of the flow-induced structure and anisotropy in lyotropic liquid crystals for hierarchical composites
Sammanfattning : Controlling the micro and nanostructure of materials is highly beneficial in order to tailor their physical properties. Extrusion-based 3D printing is a promising tool to produce hierarchical structures with controlled architecture. LÄS MER
3. Optical Investigations of Chiral Liquid Crystals
Sammanfattning : Optical investigations of course involve experimental work, but a theoretical basis is also needed. The first chapter can hopefully can give the non-expert an insight into the science of liquid crystals. Liquid crystals are optically birefringent, and a review of the phenomenon of birefringence follows in chapter 2. LÄS MER
4. Nanostructured materials isolated from bio-residues, and their characterization
Sammanfattning : The use of natural components in nanocomposites has continuously increased, due to environmental problems that are growing day by day. The use of bio-residues from forest industries to develop new materials will not only alleviate ecological problems but also affect the economy of forest industries positively. LÄS MER
5. Electro-Optical Na0.5K0.5NbO3 Films
Sammanfattning : Ferroelectric oxides are a group of advanced electronic materials with a wide variety of properties useful in applications such as memory devices, resonators and filters, infrared sensors, microelectromechanical systems, and optical waveguides and modulators.Among the oxide perovskite-structured ferroelectric thin film materials, sodium potassium niobate or Na0. LÄS MER