The Inhomogeneous Light Shift in Alkali Atoms.
Abstract
The dynamic Stark shift of an inhomogeneously broadened spectral transition has been studied. Our measurements show a shift in the observed 87 Rb ground-state hyperfine transition, which has a nonlinear dependence on light intensity when the conditions for inhomogeneous broadening are met. The nonlinearity is the result of light-intensity gradients in the signal volume, which produce an inhomogeneously broadened asymmetric microwave transition. We show that our measurements are in full agreement with the second-order perturbation-theory treatment of light-induced energy-level shifts when the effects of inhomogeneities are properly taken into consideration. The effects of inhomogeneous broadening must be carefully considered when one extracts oscillator strengths from light-shift data, or performs high-precision laser spectroscopy. Originator-supplied keywords include: AC stark effect, Atomic clocks, Atomic line shapes, Light shifts.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 24, 1985
- Accession Number
- ADA157498
Entities
People
- C. H. Volk
- James C. Camparo
- Robert P. Frueholz
Organizations
- The Aerospace Corporation