Search for dissertations about: "High order harmonic generation"

Showing result 1 - 5 of 40 swedish dissertations containing the words High order harmonic generation.

  1. 1. 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

  2. 2. 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

  3. 3. 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

  4. 4. High Datarate Solutions for Next Generation Wireless Communication

    University dissertation from Chalmers University of Technology

    Author : Zhongxia He; Chalmers tekniska högskola.; Chalmers University of Technology.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; OOK; D-QPSK; QPSK; 8-PSK; 16-QAM; Wireless Data Center; High Definition Video Transmission; Mobile Backhaul; Modem; MMIC; HBT; mHEMT; Differential Encoder; FPGA; E-band; Point-to-point Radio; Injection Locking; Harmonic Generation; Carrier Recovery;

    Abstract : Next generation wireless communication systems are essential components in order to increase the capacity of existing digital networks. Channel bandwidth as wide as several gigahertz is generally available at millimeter wave frequencies. READ MORE

  5. 5. Scaling and Gating Attosecond Pulse Generation

    University dissertation from Atomic Physics, Department of Physics, Lund University

    Author : Christoph Heyl; Lunds universitet.; Lund University.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Coherent imaging; Ultrafast electron dynamics; Single attosecond pulses; Attosecond pulse trains; XUV sources; High-order harmonic generation; XUV frequency combs; Fysicumarkivet A:2014:Heyl;

    Abstract : Popular Abstract in English This thesis is concerned with the efficient generation of ultra-short light pulses, far beyond the visible spectral range. Such light pulses can reach durations below 100 attoseconds, where one attosecond is one billionth of a billionth of a second. READ MORE