Absolute frequency measurement of the 2S-8S/D transitions in hydrogen and deuterium

New determination of the rydberg constant

B. De Beauvoir, F. Nez, L. Julien, B. Cagnac, F. Biraben, D. Touahri, L. Hilico, O. Acef, A. Clairon, J. J. Zondy

Research output: Contribution to journalArticle

158 Citations (Scopus)

Abstract

We have performed a pure optical frequency measurement of the 2S-8S/D two-photon transitions in atomic hydrogen and deuterium. These frequencies are directly compared to a new frequency standard, a diode laser stabilized to a two-photon transition at 778 nm in rubidium. We deduce a new value for the Rydberg constant, R = 109737.3156859(10) cm-1 with an uncertainty of 9 × 10-12. From the isotope shift, we derive a precise value of the 2S Lamb shift in deuterium [L2S-2P = 1059.230(9) MHz] and the difference of the quadratic charge radii of deuteron and proton.

Original languageEnglish
Pages (from-to)440-443
Number of pages4
JournalPhysical Review Letters
Volume78
Issue number3
Publication statusPublished - 1997
Externally publishedYes

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frequency measurement
deuterium
frequency standards
photons
hydrogen
rubidium
isotope effect
deuterons
semiconductor lasers
radii
protons
shift

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Absolute frequency measurement of the 2S-8S/D transitions in hydrogen and deuterium : New determination of the rydberg constant. / De Beauvoir, B.; Nez, F.; Julien, L.; Cagnac, B.; Biraben, F.; Touahri, D.; Hilico, L.; Acef, O.; Clairon, A.; Zondy, J. J.

In: Physical Review Letters, Vol. 78, No. 3, 1997, p. 440-443.

Research output: Contribution to journalArticle

De Beauvoir, B, Nez, F, Julien, L, Cagnac, B, Biraben, F, Touahri, D, Hilico, L, Acef, O, Clairon, A & Zondy, JJ 1997, 'Absolute frequency measurement of the 2S-8S/D transitions in hydrogen and deuterium: New determination of the rydberg constant', Physical Review Letters, vol. 78, no. 3, pp. 440-443.
De Beauvoir, B. ; Nez, F. ; Julien, L. ; Cagnac, B. ; Biraben, F. ; Touahri, D. ; Hilico, L. ; Acef, O. ; Clairon, A. ; Zondy, J. J. / Absolute frequency measurement of the 2S-8S/D transitions in hydrogen and deuterium : New determination of the rydberg constant. In: Physical Review Letters. 1997 ; Vol. 78, No. 3. pp. 440-443.
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AU - Biraben, F.

AU - Touahri, D.

AU - Hilico, L.

AU - Acef, O.

AU - Clairon, A.

AU - Zondy, J. J.

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