Nonresonant effects in one- and two-photon transitions
- 1 June 2002
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Physics
- Vol. 80 (6) , 633-644
- https://doi.org/10.1139/p02-019
Abstract
We investigate nonresonant contributions to resonant Rayleigh-scattering cross sections of atoms. The problematic nonresonant contributions set a limit to the accuracy to which atomic spectra determine energy levels. We discuss the off-resonance effects in one-photon transitions. We also show that off-resonance contributions for the 1S–2S two-photon transition in atomic hydrogen are negligible at current and projected levels of experimental accuracy. The possibility of a differential measurement for the detection of off-resonance effects in one-photon transitions in atomic hydrogen is discussed. PACS Nos.: 31.15-p, 12.20DsKeywords
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