Diploma Work
- My Diploma Work
- Theme of my diploma work were aspects of laser-matter interaction at
high intensities. By relativistiv effects from lasers in the near infrared
and in the range of visible light, which reach intensities of more than 1016-1018
W/cm², the linear theory (as used for the description for faith nonlinear
systems) must be modified.
- There devellops a very effectiv coupling of the laser puls envelope to
the underdense plasma, where the laser can transform a remarkable part of
its energy into plasma oszillations. By that means electrical and
magnetical wake-fields are stimmulated, which consume their energy slowly
by electron-electron- and electron-ion-collisions.
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- Single Particle Calculations
- During checks for my diploma work, I was also occupied with single
particle calculations concerning the laser-particle-interaction. There I
inspected particle movements in areas, where high laser intensities meet
with overdense plasma.
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- Parallelised PIC-Code
- For better understanding of laser-plasma-interaction, I wrote a
2d-PIC-Code during my diploma work. It used the pvm library for
parallelising the code. As computer I used a (for most applications
oversized) standard PC with two processors of type P-II 400 MHz, 512
MBytes of RAM and two (striped) 10 GByte IDE Harddisks. During my diploma
work, the system ran under Linux, where I learned to grant the stable
multi-processing facities of Linux (much in contrast to that, what
Microsoft dared to deliver at that time for multi-processor support - that
was mere a "multi processor crash help", so instable was NT 4.0
on a dual processor system).
Edited by Axel Farr.
Stand: 24. August 2011.