Search for dissertations about: "electro optic"

Showing result 1 - 5 of 34 swedish dissertations containing the words electro optic.

  2. 1. Electro-optic effects in chiral smectic liquid crystals

    Author : Gunnar Andersson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ferroelectric liquid crystals; smectic C tilt angle; electro-optic effect;

    Abstract : .... READ MORE

  4. 2. Simulation of Electro-Optic Modulators by a Time-Domain Beam-Propagation Method

    Author : Elin Solberg; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; time-domain beam-propagation method; finite element method; tensor products; computational electromagnetics; photonics; electro-optic modulators; finite element method;

    Abstract : Electro-optic modulators (EOMs) are components which convert electric signals to optical ones. They are needed, e.g., at the transmitter end of fiber-optic communication systems and in time-stretch analog-to-digital converters. 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. Optically poled fibers for electro-optic applications

    Author : Joao Manoel Barbosa Pereira; Fredrik Laurell; Walter Margulis; Stavros Pissadaki; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

    Abstract : The work presented in this thesis shows the development of optically poleddevices for use in electro-optic experiments. In the form of papers published,it describes three optical poling methods: green light poling (Paper I), poling with a UV lamp (Paper II), and corona discharge poling (Paper V). READ MORE

  7. 5. Ferroelectric Na0.5K0.5NbO3 as an electro-optic material

    Author : Mats Blomqvist; KTH; []
    Keywords : ferroelectrics; sodium potassium niobates; thin films; rf-magnetron sputtering; waveguiding; refractive index; prism coupling; dielectric tunability;

    Abstract : Ferroelectrics are a group of advanced electronic materialswith a wide variety of properties useful in applications suchas memory devices, resonators and filters, infrared sensors,microelectromechanical systems, and optical waveguides andmodulators. Among the oxide perovskite-structured ferroelectricthin film materials sodium potassium niobate or Na0. READ MORE