Electric field measurements in discharges by 2+1 photon laser Stark spectroscopy of atomic hydrogen

J. P. Booth; M. Fadlallah; J. Derouard; N. Sadeghi

doi:10.1063/1.112241

Electric field measurements in discharges by 2+1 photon laser Stark spectroscopy of atomic hydrogen

J. P. Booth
, M. Fadlallah
, J. Derouard
, N. Sadeghi

LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Laboratoire de Spectrométrie Physique

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

We have developed a new method for measuring electric field magnitude using 2+1 photon laser-induced fluorescence of ground-state hydrogen atoms. The atoms are excited to the n=2 level by two 243-nm photons, then further excited to the n=6 level by one photon at 410 nm and detected by cascaded H_α fluorescence. The electric field magnitude is deduced from the Stark splitting of the n=6 level. The method was calibrated using H atoms from a distant source flowing through a region of known electric field. Results are presented for field profiles in dc discharges in 0.3 and 1 Torr pure H₂.

Original language	English
Pages (from-to)	819-821
Number of pages	3
Journal	Applied Physics Letters
Volume	65
Issue number	7
DOIs	https://doi.org/10.1063/1.112241
Publication status	Published - 1 Jan 1994
Externally published	Yes

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10.1063/1.112241

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title = "Electric field measurements in discharges by 2+1 photon laser Stark spectroscopy of atomic hydrogen",

abstract = "We have developed a new method for measuring electric field magnitude using 2+1 photon laser-induced fluorescence of ground-state hydrogen atoms. The atoms are excited to the n=2 level by two 243-nm photons, then further excited to the n=6 level by one photon at 410 nm and detected by cascaded Hα fluorescence. The electric field magnitude is deduced from the Stark splitting of the n=6 level. The method was calibrated using H atoms from a distant source flowing through a region of known electric field. Results are presented for field profiles in dc discharges in 0.3 and 1 Torr pure H2.",

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AU - Booth, J. P.

AU - Fadlallah, M.

AU - Derouard, J.

AU - Sadeghi, N.

PY - 1994/1/1

Y1 - 1994/1/1

N2 - We have developed a new method for measuring electric field magnitude using 2+1 photon laser-induced fluorescence of ground-state hydrogen atoms. The atoms are excited to the n=2 level by two 243-nm photons, then further excited to the n=6 level by one photon at 410 nm and detected by cascaded Hα fluorescence. The electric field magnitude is deduced from the Stark splitting of the n=6 level. The method was calibrated using H atoms from a distant source flowing through a region of known electric field. Results are presented for field profiles in dc discharges in 0.3 and 1 Torr pure H2.

AB - We have developed a new method for measuring electric field magnitude using 2+1 photon laser-induced fluorescence of ground-state hydrogen atoms. The atoms are excited to the n=2 level by two 243-nm photons, then further excited to the n=6 level by one photon at 410 nm and detected by cascaded Hα fluorescence. The electric field magnitude is deduced from the Stark splitting of the n=6 level. The method was calibrated using H atoms from a distant source flowing through a region of known electric field. Results are presented for field profiles in dc discharges in 0.3 and 1 Torr pure H2.

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Electric field measurements in discharges by 2+1 photon laser Stark spectroscopy of atomic hydrogen

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