Search for dissertations about: "High-order harmonics"

Showing result 1 - 5 of 17 swedish dissertations containing the words High-order harmonics.

  1. 1. Generation of coherent short-wavelength radiation --- High-order harmonics and x-ray lasers

    University dissertation from Department of Physics, Lund University

    Author : Tomas Starczewski; Lunds universitet.; Lund University.; [1997]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Atomic and molecular physics; short-wavelength radiation; coherence; high-intensity lasers; high-order harmonics; x-ray lasers; Atom- och molekylärfysik;

    Abstract : Popular Abstract in Swedish Den senaste utvecklingen av högintensitetslasrar har gjort det möjligt att studera nya fascinerande områden inom atomfysik. Två fenomen har studerats med Lunds Terawattlaser i intensitetsområdet 1013--1017 W/cm2: förstärkning av den spontana emissionen i plasmor från fasta strålmål och gasstrålmål, samt generering av övertonsstrålning av höga ordningar. READ MORE

  2. 2. High-Order Harmonics- Characterisation, Optimisation and Applications

    University dissertation from Department of Physics, Lund University

    Author : Claire Lyngå; Lunds universitet.; Lund University.; [1999]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; high-harmonic generation; VUV spectroscopy; high-power lasers; Atomic and molecular physics; radiative lifetimes; XUV spectroscopy; Atom- och molekylärfysik; Fysicumarkivet A:1999:Lyngå;

    Abstract : Recent advances in laser technology, with the development of extremely short-pulse, high-intensity lasers, have opened doors to new areas in atomic physics. By focusing light from an intense, short-pulse laser into a gas jet, the emission of high-order harmonics of the laser frequency has been studied. READ MORE

  3. 3. Optimisation and Application of Intense High-Order Harmonic Pulses

    University dissertation from Department of Physics, Lund University

    Author : Lena Roos; Lunds universitet.; Lund University.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Coherent radiation; Optimisation; Multiphoton ionisation; Phase matching; Physics; Fysik; Atomic and molecular physics; Atom- och molekylärfysik; Laserteknik; Laser technology; High-power lasers; Short pulses; High-order harmonic generation; Short wavelength; Fysicumarkivet A:2001:Roos;

    Abstract : The high-order harmonics that are created in the interaction between an intense laser pulse (around 1014 W/cm2) and a gas medium are studied. The high-order harmonic radiation is a relatively new source of coherent radiation in the short wavelength range. READ MORE

  4. 4. Second-generation High-Order Harmonic Sources — From CPA to OPCPA

    University dissertation from Department of Physics, Lund University

    Author : Piotr Rudawski; Lunds universitet.; Lund University.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Optical parametric chirped pulse amplification; Fysicumarkivet A:2014:Rudawski; Chirped pulse amplification; High-order harmonic generation; Attosecond pulse;

    Abstract : This thesis presents two sources of extreme ultraviolet (XUV) radiation based on high-order harmonic generation (HHG) in gases. The sources were developed for experiments requiring high-flux harmonic beams or HHG pulses at high-repetition rate. These were used experimentally to image nano-scale objects. READ MORE

  5. 5. Applications of Short Extreme Ultraviolet Pulses to the Spectroscopy of Atoms and Molecules

    University dissertation from Department of Physics, Lund University

    Author : Allan Johansson; Lunds universitet.; Lund University.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; High-order harmonics; short pulses; pulse characterisation; sidebands; lifetime measurements; time domain spectroscopy; frequency domain spectroscopy; He; N2; CO; XUV; Atomic and molecular physics; relative polarisation; Atom- och molekylärfysik; Fysicumarkivet A:2003:Johansson;

    Abstract : This thesis is devoted to the characterisation in time and frequency, and to spectroscopic application, of extreme ultraviolet (XUV) pulses. High-order harmonic generation or wave mixing processes were used to produce the pulses in the XUV spectral region. READ MORE