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@ARTICLE{Ertmer:897398,
author = {Ertmer, S. and Marchuk, O. and Sackers, M. and Dickheuer,
S. and Brezinsek, S. and Mertens, Ph and Kreter, A.},
title = {{O}ptical isolation of spectral lines emitted by sputtered
tungsten in a weakly magnetized plasma},
journal = {Journal of physics / B},
volume = {54},
number = {2},
issn = {1361-6455},
address = {Bristol},
publisher = {IOP Publ.},
reportid = {FZJ-2021-03764},
pages = {025401 -},
year = {2020},
abstract = {Optical isolation of the clockwise or the counter-clockwise
circular polarization of spectral lines was applied to
emission of sputtered tungsten atoms. As a result one
measures the weak magnetic field at plasma-surface interface
resulting in splitting of spectral lines (W I at 4008.751 Å
and 4982.593 Å) being negligibly small with respect to the
Doppler broadening. One relies only on the phase rotation of
a reflected circular polarized light propagating at the
normal incidence to the mirror-like surface. The spectral
shift of the signal from sputtered W atoms on the detector
using high-resolution spectrometer provides the value of the
magnetic field at a known dispersion, i.e. no further
modeling or additional assumption on the distribution of
atoms is required. The isolation of spectral line components
is equivalent to isolation of the effect of the magnetic
field from the measured line shape. It is complete for
Zeeman triplet lines and partial for other lines. The
results are found to be in a very good agreement of $3\%$
with calculations and the Zeeman resolved laser absorption
spectroscopy $(10\%)$ on metastable levels of Ar I atoms.},
cin = {IEK-4},
ddc = {530},
cid = {I:(DE-Juel1)IEK-4-20101013},
pnm = {134 - Plasma-Wand-Wechselwirkung (POF4-134)},
pid = {G:(DE-HGF)POF4-134},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000618344500001},
doi = {10.1088/1361-6455/abcf7f},
url = {https://juser.fz-juelich.de/record/897398},
}