Search for dissertations about: "optical propagation in materials"

Showing result 1 - 5 of 56 swedish dissertations containing the words optical propagation in materials.

  2. 1. Cracks in superalloys

    Author : Jonas Saarimäki; Johan Moverare; Kjell Simonsson; Magnus Hörnqvist Colliander; Robert Eriksson; Håkan Brodin; Mark Whitaker; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Gas turbines are widely used in industry for power generation and as a power source at hard to reach locations where other possibilities for electrical power supplies are insufficient. New ways of producing greener energy is needed to reduce emission levels. This can be achieved by increasing the combustion temperature of gas turbines. READ MORE

  4. 2. Effect of Dwell-times on Crack Propagation in Superalloys

    Author : Jonas Saarimäki; Johan Moverare; Kjell Simonsson; Magnus Hörnqvist; Robert Eriksson; Johan Ahlström; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Gas turbines are widely used in industry for power generation and as a power source at "hard to reach" locations where other possibilities for electrical supply are insufficient. There is a strong need for greener energy, considering the effect that pollution has had on global warming, and we need to come up with ways of producing cleaner electricity. READ MORE

  5. 3. Electro-Optical Na0.5K0.5NbO3 Films

    Author : Mats Blomqvist; Alexander M. Grishin; Prof. Bruce Wessels; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Functional materials; ferroelectrics; sodium potassium niobates; thin films; rf-magnetron sputtering; waveguiding; refractive index; prism-coupling; electro-optic effects; dielectric tunability; Funktionella material; Functional materials; Funktionella material;

    Abstract : 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. READ MORE

  6. 4. Microscopic Modeling of Exciton Propagation and Dissociation in Two-Dimensional Materials

    Author : Raul Perea Causin; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; 2D materials; excitons; dissociation; many-particle physics; propagation; dynamics;

    Abstract : Atomically thin materials have been in the spotlight of research during the last decade due to their exceptional properties, providing a platform for the study of novel physical phenomena. In particular, transition metal dichalcogenides (TMDs) have emerged as promising atomically thin materials for future optoelectronic applications owing to their strong light-matter interaction and their high tunability. READ MORE

  7. 5. Two-Dimensional Photonic Crystals in InP-based Materials

    Author : Mikaël Mulot; KTH; []
    Keywords : Photonic crystals; photonic bandgap materials; indium phosphide; dry etching; chemically assisted ion beam etching; reactive ion etching; electron beam lithography; photonic integrated circuits; optical waveguides; resonant cavities; optical filterin;

    Abstract : Photonic crystals (PhCs) are structures periodic in thedielectric constant. They exhibit a photonic bandgap, i.e., arange of wavelengths for which light propagation is forbidden. READ MORE