Hauptseite > Publikationsdatenbank > Optical isolation of spectral lines emitted by sputtered tungsten in a weakly magnetized plasma > print

001     897398
005     20240711113900.0
024 7 _ |a 10.1088/1361-6455/abcf7f
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024 7 _ |a 0368-3508
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100 1 _ |a Ertmer, S.
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245 _ _ |a Optical isolation of spectral lines emitted by sputtered tungsten in a weakly magnetized plasma
260 _ _ |a Bristol
|c 2020
|b IOP Publ.
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520 _ _ |a 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.
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700 1 _ |a Marchuk, O.
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700 1 _ |a Sackers, M.
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700 1 _ |a Dickheuer, S.
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700 1 _ |a Brezinsek, S.
|0 P:(DE-Juel1)129976
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700 1 _ |a Mertens, Ph
|0 P:(DE-Juel1)4596
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700 1 _ |a Kreter, A.
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773 _ _ |a 10.1088/1361-6455/abcf7f
|g Vol. 54, no. 2, p. 025401 -
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|t Journal of physics / B
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|y 2020
|x 1361-6455
856 4 _ |u https://juser.fz-juelich.de/record/897398/files/Ertmer_2020_J._Phys._B%20_At._Mol._Opt._Phys._54_025401.pdf
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856 4 _ |y Published on 2021-02-12. Available in OpenAccess from 2022-02-12.
|u https://juser.fz-juelich.de/record/897398/files/Optical%20isolation%20of%20spectral_Postprint%20Ertmer.pdf
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