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 language | English |
|---|---|
| Pages (from-to) | 440-443 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 78 |
| Issue number | 3 |
| Publication status | Published - 1997 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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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 journal › Article
}
TY - JOUR
T1 - Absolute frequency measurement of the 2S-8S/D transitions in hydrogen and deuterium
T2 - New determination of the rydberg constant
AU - De Beauvoir, B.
AU - Nez, F.
AU - Julien, L.
AU - Cagnac, B.
AU - Biraben, F.
AU - Touahri, D.
AU - Hilico, L.
AU - Acef, O.
AU - Clairon, A.
AU - Zondy, J. J.
PY - 1997
Y1 - 1997
N2 - 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.
AB - 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.
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M3 - Article
VL - 78
SP - 440
EP - 443
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 3
ER -