L'utilisation des raies interdites de l'hélium à la mesure des niveaux 4F, et de l'écart singulets-triplets

Pilon, Anne-Marie

doi:10.1051/jphysrad:019540015010069200

Cited by 3 publications

(2 citation statements)

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“…The resulting positions give good agreement with Mlle. Pilon’s measurement [ 25 ] of the 3 d 3 D—3 d 1 D separation, and it is unlikely that the intersystem connection is in error by more than 0.02 cm −1 . A recent unpublished interferometric measment of

(4857.454 cm −1 ) has been combined with the average of two recent interferometric determinations of

to obtain the

separation.…”

Section: Energy Levelsmentioning

confidence: 99%

“…The new positions given in table 2 for the 4 f 1 F° and 4 f 3 F° terms are based primarily on Mlle. Pilon’s measurements [ 25 ] of the 4 d 1 D—4 f 1 F° and 4 d 3 D— 4 f 3 F° separations. To a lesser extent they are also based on the measurements by C. J. Humphreys and H. J. Kostkowski [ 36 ] of the infrared transitions from the 4 f terms to 3 d terms.…”

Section: Energy Levelsmentioning

confidence: 99%

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Energy levels and spectrum of neutral helium (4He I)

Martin¹

1960

J. RES. NATL. BUR. STAN. SECT. A.

116

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A ta bl e of energy levels ba cd on t he most acc ura te obser vation s now availa ble is give n ro r t he neut ral 'H e a tom . Th e wa vele ngths co n ta ined in a rev ised list of 'He I lin es from 320 A to 21132 A are a lso ba sed on t he best meas ure ments, over ha lf of t hem ha ving bee n ca l c ulit~ed from t he wave number se p a rat i o n~ of a ppropri ate levels. Severa l previollsly disturbin g features of t he ' H e term scheme a rc obv iated by t he rev ised level valu es . In it dj s c u s~i o n of t he ex peri me ntal res ults for t his spect rum some compariso ns wi t h t heor y a re m a cl e.

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(4857.454 cm −1 ) has been combined with the average of two recent interferometric determinations of

to obtain the

separation.…”

Section: Energy Levelsmentioning

confidence: 99%

Section: Energy Levelsmentioning

confidence: 99%

Energy levels and spectrum of neutral helium (4He I)

Martin¹

1960

J. RES. NATL. BUR. STAN. SECT. A.

116

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High resolution optogalvanic spectroscopy of He 3 1,3D–2 3P transitions

Fukuda

Fujimaki

Adachi

et al. 1985

The Journal of Chemical Physics

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He 3 1,3D–2 3P lines have been investigated by optogalvanic spectroscopy in the hollow cathode discharge of He to reveal the presence of the 3 1D2–2 3P2 component which is predicted at 0.0764 cm−1 above the 3 1D2–2 3P1 line appearing at 17 018.137±0.004 cm−1. The assignment of the latter has also been experimentally established by the present study through the use of optogalvanic double resonance methods. The spin-orbit interaction of the 3 1D2 level with the 3 3D2 level is responsible for the appearance of the 3 1D2–2 3P2 line. The relaxation processes among the 3 1D, 3 3D, and 2 3P levels have also been briefly discussed on the basis of the observations of mysterious dips on the double resonance signals and of a broad background signal on Doppler-free intermodulation spectrum.

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L'utilisation des raies interdites de l'hélium à la mesure des niveaux 4F, et de l'écart singulets-triplets

Cited by 3 publications

References 0 publications

Energy levels and spectrum of neutral helium (4He I)

Energy levels and spectrum of neutral helium (4He I)

High resolution optogalvanic spectroscopy of He 3 1,3D–2 3P transitions

Fine structure of Rydberg states:n=6 and 7DandFstates of
MacAdam
¹
,
Wing
²

1975
Phys. Rev. A
47
0
1
0
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L'utilisation des raies interdites de l'hélium à la mesure des niveaux 4F, et de l'écart singulets-triplets

Cited by 3 publications

References 0 publications

Energy levels and spectrum of neutral helium (4He I)

Energy levels and spectrum of neutral helium (4He I)

High resolution optogalvanic spectroscopy of He 3 1,3D–2 3P transitions

Fine structure of Rydberg states:n=6 and 7DandFstates ofMacAdam1, Wing2 1975Phys. Rev. A47010View full textAdd to dashboardCite

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About

L'utilisation des raies interdites de l'hélium à la mesure des niveaux 4F, et de l'écart singulets-triplets

Fine structure of Rydberg states:n=6 and 7DandFstates of
MacAdam
¹
,
Wing
²

1975
Phys. Rev. A
47
0
1
0
View full text Add to dashboard Cite