Stark spectroscopy at Balmer-αline of atomic hydrogen for measuring sheath electric field in a hydrogen plasma

Nishiyama, Shusuke; Nakano, Haruhisa; Goto, Motoshi et al.

Journal of Physics D: Applied Physics, 2017, 50(23), 234003

Permalink : https://hdl.handle.net/2115/77155

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アクセス権	open access
URI	https://hdl.handle.net/2115/77155
タイトル	Stark spectroscopy at Balmer-αline of atomic hydrogen for measuring sheath electric field in a hydrogen plasma
著者	Nishiyama, Shusuke ; Nakano, Haruhisa ; Goto, Motoshi ; Sasaki, Koichi
著者名 Nishiyama, Shusuke
著者名 Nakano, Haruhisa
著者名 Goto, Motoshi
e-Rad_Researcher 50235248 著者名 Sasaki, Koichi
発行日	2017-07-01
出版者	IOP Publishing
収録物名	Journal of Physics D: Applied Physics
巻(号)	50(23)
ページ	234003
抄録	This paper reports a diode laser based system which is applicable to the measurement of electric field in the sheath region of a hydrogen plasma. The electric field is deduced from the Stark spectrum of the Balmer-α line of atomic hydrogen. Saturation spectroscopy with a Doppler-free spectral resolution is adopted to detect the Stark effects of the low energy states. We have demonstrated a detection limit of 10 V cm−1, which is a sufficient sensitivity for investigating the structures of the sheath electric fields in low-temperature plasmas. We have discussed the detection limit, the measurement ambiguity, the spatial resolution, and the limitation of the developed method.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0022-3727
EISSN	1361-6463
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1088/1361-6463/aa6e86