TY - JOUR
T1 - Spatially Resolved Absorption Spectroscopy On A Microhollow Cathode Helium Plasma Using A Vertical-Cavity Surface-Emitting Laser
AU - Torii, Kakeru
AU - Yamawaki, Shota
AU - Katayama, Koichi
AU - Namba, Shinichi
AU - Fujii, Keisuke
AU - Shikama, Taiichi
AU - Hasuo, Masahiro
N1 - Publisher Copyright:
© 2015 The Japan Society of Plasma Science and Nuclear Fusion Research
PY - 2015
Y1 - 2015
N2 - For the 1s2p(1P) → 1s3d(1D) transition at 667.815 nm of helium in a microhollow cathode plasma with a 300 μm diameter, we measured the absorption spectra with spatial resolution of 30 μm using a vertical-cavity surface-emitting laser diode. The spectra observed near the electrode at 10 kPa gas pressure showed asymmetry. By analyzing the observed spectra with Voigt functions including the DC Stark effect, we evaluated the gas temperature, electron density, electric field strength and 1s2p(1P) atom density and produced their two-dimensional maps.
AB - For the 1s2p(1P) → 1s3d(1D) transition at 667.815 nm of helium in a microhollow cathode plasma with a 300 μm diameter, we measured the absorption spectra with spatial resolution of 30 μm using a vertical-cavity surface-emitting laser diode. The spectra observed near the electrode at 10 kPa gas pressure showed asymmetry. By analyzing the observed spectra with Voigt functions including the DC Stark effect, we evaluated the gas temperature, electron density, electric field strength and 1s2p(1P) atom density and produced their two-dimensional maps.
KW - electric field
KW - electron density
KW - gas temperature
KW - helium absorption spectra
KW - laser spectroscopy
KW - microhollow cathode plasma
KW - spatially resolved measurement
KW - vertical-cavity surface-emitting laser
UR - https://www.scopus.com/pages/publications/85039984597
U2 - 10.1585/pfr.10.3406063
DO - 10.1585/pfr.10.3406063
M3 - Article
AN - SCOPUS:85039984597
SN - 1880-6821
VL - 10
SP - 1
EP - 5
JO - Plasma and Fusion Research
JF - Plasma and Fusion Research
ER -