Lines Shapes of Atomic-Candle-Type Rabi Resonances
Abstract
When atoms interact with a phase-modulated field, the probability of finding the atom in the excited-state oscillates at the second harmonic of the modulation frequency, 2 omega(sub m). The amplitude of this oscillating probability is a resonant function of the Rabi frequency Omega, and this is termed a beta Rabi resonance. In this work, we examine the line shape of the beta Rabi-resonance both theoretically and experimentally. We find that a small- signal theory of the beta-Rabi-resonance condition captures much of the line shape's character, and, in particular, that the resonance's "line Q" (i.e., 2 delta Omega (sub 1/2)/Omega) is proportional to the modulation frequency. This result can be applied to the atomic candle, where beta Rabi resonances are employed to stabilize field strength. Considering our results in the context of developing an optical atomic candle, we find that a free-running diode laser's intensity noise could be improved by orders of magnitude using the atomic candle concept.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 2002
- Accession Number
- ADA412333
Entities
People
- A. Presser
- B. Sickmiller
- J. G. Coffer
- James C. Camparo
Organizations
- The Aerospace Corporation