Search for dissertations about: "high-power"

Showing result 1 - 5 of 416 swedish dissertations containing the word high-power.

  2. 1. High Power Microwave Sources : design and experiments

    Author : Cecilia Möller; Nils Brenning; Stefan Silfverskiöld; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Space physics; Rymdfysik; Plasma physics; Plasmafysik;

    Abstract : High-Power Microwaves (HPM) can be used to intentionally disturb or destroy electronic equipment at a distance by inducing high voltages and currents. This thesis presents results from experiments with a narrow band HPM source, the vircator. READ MORE

  4. 2. Evaluation of different topologies for high-power dc-dc converters

    Author : Georgios D. Demetriades; KTH; []
    Keywords : dc-dc power converter; high-power; high-frequency; bi-directional power flow; half-bridge configuration; component stresses; galvanic isolation;

    Abstract : .... READ MORE

  5. 3. Optically pumped semiconductor disk lasers for high-power wide wavelength tuning

    Author : Carl Borgentun; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; beam characterization; design; high power; wavelength tuning; Semiconductor laser; gain measurements; vertical-external-cavity surface-emitting laser; optically pumped semiconductor disk laser;

    Abstract : In this work I present and verify a strategy that makes it possible to change the wavelength, or color, of an external cavity semiconductor laser over a very large range. This is achieved by a careful design and thorough optimization of the active component — the gain element of the laser. READ MORE

  6. 4. Fundamentals of High Power Impulse Magnetron Sputtering

    Author : Johan Böhlmark; Ulf Helmersson; André Anders; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plasma; Pulsed plasma; High Power Pulsed Magnetron Sputtering; Plasma Characterization; Physics; Fysik;

    Abstract : In plasma assisted thin film growth, control over the energy and direction of the incoming species is desired. If the growth species are ionized this can be achieved by the use of a substrate bias or a magnetic field. Ions may be accelerated by an applied potential, whereas neutral particles may not. READ MORE

  7. 5. Design and Experiments with High Power Microwave Sources : The Virtual Cathode Oscillator

    Author : Cecilia Möller; Nils Brenning; Stefan Silfverskiöld; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High Power Microwaves Vircator;

    Abstract : High-Power Microwaves (HPM) can be used to intentionally disturb or destroy electronic equipment at a distance by inducing high voltages and currents.This thesis presents results from simulations and experiments with a narrow band HPM source, the vircator. READ MORE