Search for dissertations about: "Detuning"

Showing result 11 - 15 of 28 swedish dissertations containing the word Detuning.

  2. 11. A soft X-ray emission study of the electronic structure of molecules

    Author : Kerstin Gunnelin; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; molecules; electronic structure; soft x-ray emission spectroscopy; Fysik; Physics; Fysik; fysik; Physics;

    Abstract : The electronic structure of molecules has been studied with soft x-ray emission (SXE)spectroscopy. The parity selection rule for electronic transitions using resonant excitation has been verified for homonuclear diatomic molecules by studying N2 and O2. READ MORE

  4. 12. Time dependent processes incavity QED

    Author : Jonas Larson; KTH; []
    Keywords : cavity QED; state preparation; non-classical; Jaynes-Cummings model; Fock state; measurement;

    Abstract : Cavity quantum electrodynamics (QED) has become one of themost successful tools for quantum information processing, butalso for the study of other pure quantum effects. In thisthesis we investigate one such system, the micromaser; an atomtraverse a cavity and interacts with the quantized modes of thecavity field. READ MORE

  5. 13. Development of 1.3-μm GaAs-based vertical-cavity surface-emitting lasers

    Author : Petrus Sundgren; Mattias Hammar; Harri Lipsanen; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; Fysik;

    Abstract : Long-wavelength vertical-cavity surface-emitting lasers (VCSELs) are desirable as low-cost sources for optical metropolitan-area and access networks. In the development of 1.3-µm VCSELs, most attention today is given to monolithic GaAs-based solutions, although no established active material exists in this wavelength region. READ MORE

  6. 14. Photoelectron spectroscopy in the vicinity of a core-ionization threshold

    Author : Stefan Sundin; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; Fysik; fysik; Physics;

    Abstract : The fundamental interaction between photons and free molecules/atoms has been studied by means of soft x-ray photoelectron spectroscopy. Special interest has been paid to the non-resonant and resonant processes in the vicinity of a core-ionization threshold. READ MORE

  7. 15. Wideband Active and Passive Antenna Solutions for Handheld Terminals

    Author : Peter Lindberg; Anders Rydberg; Anders Pers; Nicholas Buris; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; active antennas; impedance matching; dipole antennas; baluns; slot antennas; microstrip antennas; mobile antennas; multifrequency antennas; antenna proximity factors; receiving antennas; ferrite devices; Teknisk fysik;

    Abstract : This thesis presents solutions and studies related to the design of wideband antennas for wireless handheld terminal applications. A method of electrically shortening the terminal chassis length to obtain resonance at high frequencies has been proposed and evaluated, thereby increasing the antennas impedance bandwidth. READ MORE