Sökning: "optical measurement"

Visar resultat 31 - 35 av 341 avhandlingar innehållade orden optical measurement.

  1. 31. A sub-5 fs 100 TW optical parametric synthesizer

    Författare :Peter Fischer; Laszlo Veisz; Ove Axner; Cord L. Arnold; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Optical parametric amplification OPA ; optical parametric synthesizer OPS optimization; energy stability; carrier envelop phase stability; temporal intensity contrast; saturation; fewcycle; tera watt; fysik; Physics;

    Sammanfattning : State-of-the-art ultrashort light sources in the visible and near-infrared spectral regions provide direct access to the femtosecond realm, thereby enabling understanding and control of electronic processes within matter. On the other hand, ultra-intense light pulses lead to the emergence of relativistic electron motion and many related phenomena, such as electron & ion acceleration and high-order harmonic generation in plasmas. LÄS MER

  3. 32. Multi-dimensional imaging : A tool to unravel material properties at the nanoscale

    Författare :Boris Louis; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Optical microscopy; Fluorescence Microscopy; Multi-dimensional imaging; Material sciences; Optical Trapping; Single-molecule imaging and tracking; Single-molecule spectroscopy;

    Sammanfattning : Optical microscopy has revolutionized the way we understand our world and has become a crucial tool in a range of disciplines such as biology, physics, chemistry, and material sciences. The development of new microscopy techniques has been capital to its success and wide applicability. LÄS MER

  4. 33. Development of laser spectroscopy for scattering media applications

    Författare :Mats Andersson; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Laserteknik; Laser technology; Atom- och molekylärfysik; Atomic and molecular physics; Fysik; Physics; coherent sampling; optical sensor; light absorption; noninvasive measurement; diode laser; scattering of light; laser spectroscopy; fluorescence spectroscopy; remote sensing; Lidar; DIAL;

    Sammanfattning : Laser spectroscopy for both large and small spatial scales has been developed and used in various applications ranging from remote monitoring of atmospheric mercury in Spain to investigation of oxygen contents in wood, human sinuses, fruit, and pharmaceutical solids. Historically, the lidar group in Lund has performed many differential absorption lidar (DIAL) measurements with a mobile lidar system that was first described in 1987. LÄS MER

  5. 34. Reaction Cross Section Measurements for p,d,3He and 4He at Intermediate Energies

    Författare :Agris Auce; Bo Höistad; Anders Ingemarsson; Florin Carstoiu; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; Reaction cross section; proton; deuteron; 3He; alpha particle; measurement; intermediate energy; Kärnfysik; Nuclear physics; Kärnfysik;

    Sammanfattning : Reaction cross sections were measured for protons at 65.5 MeV, for deuterons at 37.8, 65.5, 97. LÄS MER

  7. 35. Studies in Robotic Vision, Optical Illusions and Nonlinear Diffusion Filtering

    Författare :Henrik Malm; Matematik LTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hand-eye calibration; camera calibration; nonlinear diffusion filtering; robotic vision; optical illusions; Mathematics; Matematik;

    Sammanfattning : This thesis is divided into three parts, which all deal with computational analysis and processing of images. However, the settings are quite diverse.They range from robotic camera sensors, over human perception, to physical measurement setups. LÄS MER