Search for dissertations about: "harmonic generation"

Showing result 1 - 5 of 122 swedish dissertations containing the words harmonic generation.

  2. 1. Toward Creating a Coherent, Next-Generation Light Source with special emphasis on nonlinear harmonic generation in single-pass, high-gain free-electron lasers

    Author : Sandra G. Biedron; Lunds universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Visible and Ultraviolet Sources; Intense Particle Beams and Radiation Sources; Frequency Conversion; Free-Electron Lasers; Harmonic Generation; Physics; Fysik;

    Abstract : There is a strong desire for short wavelength (~1 Å), short pulsewidth (.... READ MORE

  4. 2. Optimization of High-order Harmonic Generation for Attosecond Science

    Author : Robin Weissenbilder; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; High-order Harmonic Generation; Attosecond Pulse Train; attosecond dynamics; photoelectron interferometry; Quantum state tomography; Phase matching; Fysicumarkivet A:2023:Weissenbilder;

    Abstract : High-order harmonic generation is a highly nonlinear, though inherently inefficient, process which can lead to emission of coherent, broadband extreme ultraviolet radiation in the form of attosecond pulses. Attosecond pulses are crucial for experiments investigating photoionization dynamics on the femto- and attosecond timescales. READ MORE

  5. 3. High Datarate Solutions for Next Generation Wireless Communication

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

    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

  6. 4. Resonance-enhanced Second Harmonic Generation from spherical microparticles in aqueous suspension

    Author : Sviatlana Viarbitskaya; Tony Hansson; Micha Bonn; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nonlinear optics; second harmonic generation; adsorption; molecules; Physics; Fysik; Physics; fysik;

    Abstract : Second harmonic generation (SHG) is a nonlinear optical effect sensitive to interfaces between materials with inversion symmetry. It is used as an effective tool for detection of the adsorption of a substance to microscopic particles, cells, liposomes, emulsions and similar structures, surface analysis and characterization of microparticles. READ MORE

  7. 5. Piezoelectric Generation and Damping of Extensional Waves in Bars

    Author : Anders Jansson; Bengt Lundberg; Urmas Valdek; Peter Olsson; Uppsala universitet; []
    Keywords : Technology; Piezoelectric; wave; generation; damping; bar; TEKNIKVETENSKAP;

    Abstract : This thesis focuses on the electromechanical processes of generation and damping of transient waves in bars with attached piezoelectric members. In particular, the influence of amplifier and electrical circuitry on the mechanical waves is of interest. READ MORE