Sökning: "laser-induced thermal grating spectroscopy"

Hittade 3 avhandlingar innehållade orden laser-induced thermal grating spectroscopy.

  1. 1. Nonlinear optical techniques for ultrafast laser diagnostics : Development of femtosecond LIF, LIGS, CARS and backward lasing

    Författare :Maria Ruchkina; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; laser diagnostics; femtosecond laser; nonlinear interactions; ultrafast spectroscopy; multi-photon excitation; laser-induced fluorescence; rotational coherent anti-Stokes Raman spectroscopy; laser-induced grating spectroscopy; lasing; backward lasing technique; Fysicumarkivet A:2021:Ruchkina;

    Sammanfattning : The thesis work concerns development and application of four versatile nonlinear optical techniques, based on exploiting ultrashort laser pulses, for diagnostic purposes in gases and flames. The four techniques, all laser-based, are two-photon laser-induced fluorescence (TPLIF), hybrid femtosecond/nanosecond (fs/ns) rotational coherent anti-Stokes Raman scattering (fs/ns RCARS), fs-laser-induced grating spectroscopy (fs-LIGS), and backward lasing. LÄS MER

  3. 2. Non-linear mid-infrared laser techniques for combustion diagnostics

    Författare :Anna-Lena Sahlberg; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Combustion diagnostics; non-linear; mid-infrared; degenerate four-wave mixing; laser-induced thermal grating spectroscopy; polarization spectroscopy;

    Sammanfattning : .... LÄS MER

  4. 3. Development of optical diagnostics of plasma-related phenomena and applications

    Författare :Yupan Bao; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Non-thermal plasma; plasma-assisted combustion; laser diagnostics; spectroscopy; coded imaging; Fysicumarkivet A:2022:Bao;

    Sammanfattning : Optical diagnostics techniques based on coded imaging were developed and applied for plasma-related phenomena and applications. The signal of interest is first encoded with a sinusoid pattern either by structured laser illumination or implement of a diffractive optical element, such as a grating, along the optical path of the signal. LÄS MER