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Electron energy loss spectroscopy of wall charges in plasma-facing dielectrics

Autor: Thiessen, E., Bronold, F. X., Fehske, H.

We propose a setup enabling electron energy loss spectroscopy to determine the density of the electrons accumulated by an electro-positive dielectric in contact with a plasma. It is based on a two-layer structure inserted into a recess of the wall. C

Externí odkaz: http://arxiv.org/abs/1901.11317

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Electron kinetics at the plasma interface

Autor: Bronold, F. X., Fehske, H., Pamperin, M., Thiessen, E.

Publikováno v: Eur. Phys. J. D (2018) 72: 88

The most fundamental response of an ionized gas to a macroscopic object is the formation of the plasma sheath. It is an electron depleted space charge region, adjacent to the object, which screens the object's negative charge arising from the accumul

Externí odkaz: http://arxiv.org/abs/1804.00915

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Surface mode hybridization in the optical response of core-shell particles

Autor: Thiessen, E., Heinisch, R. L., Bronold, F. X., Fehske, H.

Publikováno v: Phys. Rev. A 93, 033827 (2016)

We present an exact rewriting of the Mie coefficients describing the scattering of light by a spherical core-shell particle which enables their interpretation in terms of an hybridization of the two surface modes arising, respectively, at the core-sh

Externí odkaz: http://arxiv.org/abs/1507.08122

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Scattering of infrared light by dielectric core-shell particles

Autor: Thiessen, E., Bronold, F. X., Heinisch, R. L., Fehske, H.

Publikováno v: Phys. Rev. A 91, 043837 (2015)

We study the scattering of infrared light by small dielectric core-shell particles taking a sapphire sphere with a CaO core as an example. The extinction efficiency of such a particle shows two intense series of resonances attached, respectively, to

Externí odkaz: http://arxiv.org/abs/1503.04651

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