Sökning: "laser-plasmas"
Hittade 4 avhandlingar innehållade ordet laser-plasmas.
1. Collisional effects and attosecond diagnostics in laser-generated plasmas
Sammanfattning : When matter is radiated by laser light of extreme intensity, it is rapidly ionized, thereby forming a plasma. Such laser-generated plasmas can be used as sources of energetic particles and radiation, or to study astrophysically relevant phenomena in the laboratory and the behavior of matter under extreme conditions. LÄS MER
2. Collisional effects on electrostatic shock waves and heating in laser-generated plasmas
Sammanfattning : Electrostatic shock waves are associated with an electrostatic field structure propagating at supersonic speed through laboratory or astrophysical plasmas. Shock ion acceleration schemes, based on the strong electrostatic field in the shock structure, show promising potential due to the narrow energy spread of accelerated ions – which can be applied in plasma diagnostics, the generation of warm dense matter or medical purposes. LÄS MER
3. Fronts and instabilities in laser ablation, organic semiconductors and quantum media
Sammanfattning : The concept of a front plays a decisive role in various elds in physics and beyond. In the present thesis we study key aspects of front dynamics and stability in the context of laser plasmas, organic semiconductors and quantum media. LÄS MER
4. A new laser-plasma X-ray source for microscopy and lithography
Sammanfattning : A new high-brightness source for soft X-rays and EUV-radiation has been developed. This laser-plasma source utilizes a microscopic liquid droplet or jet as target. The result is a reduction of debris emission by several orders of magnitude compared to conventional laser plasmas. LÄS MER