Published March 28, 1985
| Version v1
Journal article
Isotope shift of the 23S1-23P transition in helium
Creators
- 1. Ecole Normale Superieure, 75 - Paris (France). Lab. de Spectroscopie Hertzienne
Description
The 4He-3He isotope shift of the transition 23S1-23P is directly measured by Doppler-free absorption spectroscopy with a colour-centre laser operating in single mode around lambda = 1.08 μm. The splitting between the (23S1-23P0) line of 4He and the 23S1, F = 3/2-23P0) line of 3He is found to be (811 +- 3) MHz, leading to a shift of (33 668 +- 3) MHz for the transition 23S1-23P between 4He and 3He. The value compares well with previous experimental data but is more accurate. The agreement with the calculated isotope shift is good. (author)
Additional details
Publishing Information
- Journal Title
- J. Phys., B (London). At. Mol. Phys.
- Journal Volume
- 18
- Journal Issue
- 6
- Series
- J. Phys., B (London). At. Mol. Phys.
- Journal Page Range
- 1093-1100
- ISSN
- 0022-3700
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 16047290
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; COMPARATIVE EVALUATIONS; ENERGY-LEVEL TRANSITIONS; EXPERIMENTAL DATA; HELIUM; HELIUM 3; HELIUM 4; P STATES; SPECTRA; SPECTRAL SHIFT
- Descriptors DEC
- DATA; ELEMENTS; ENERGY LEVELS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HELIUM ISOTOPES; INFORMATION; ISOTOPES; LIGHT NUCLEI; NONMETALS; NUCLEI; NUMERICAL DATA; RARE GASES; SPECTROSCOPY; STABLE ISOTOPES
Optional Information
- Contract/Grant/Project number
- Contract 81/154