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P: Fachverband Plasmaphysik

P 27: Complex Plasmas and Dusty Plasmas II

P 27.3: Vortrag

Donnerstag, 8. März 2018, 14:40–14:55, KI 1.174

Measuring the full Stokes vector of scattered light for in situ kinetic Mie ellipsometry via division of aperture. — •Andreas Petersen, Franko Greiner, and Sebastian Groth — Institute of Experimental and Applied Physics, Kiel University, Germany

Nanodusty plasmas are of interest to basic plasma physics as well as to plasma technology. The confinement provided by the discharge and the interparticle forces are the major factors which determine particle density. To investigate the plasma, size and spatial distribution of the particles are needed. We present a new setup featuring a division of aperture camera in combination with a liquid crystal retarder. This allows us to measure the four Stokes parameters of laser light scattered by the probed nanoparticles. This method builds upon and expands Imaging Mie [1]. It uses a kinetic approach [2] to allow in situ measurement of particle radii.

[1] F. Greiner et al., Plasma Sources Sci. Technol. 21, 065005 (2012)

[2] S. Groth et al., J. Phys. D: Appl. Phys. 48, 465203 (2015)