Line shape of a transition between two levels in a three-level Lambda configuration
- Authors
- Han, Hyok Sang; Jeong, Ji Eun; Cho, D.
- Issue Date
- 2-9월-2011
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW A, v.84, no.3
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW A
- Volume
- 84
- Number
- 3
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/111603
- DOI
- 10.1103/PhysRevA.84.032502
- ISSN
- 1050-2947
- Abstract
- We report on our study of the line shape of a transition between two levels in a three-level Lambda configuration. By using Poisson statistics under the assumption that the atom stays in a two-level steady state before it is optically pumped to the reservoir state, we arrive at a simple analytic expression for the line shape of a three-level atom. This expression reveals a new type of saturation in the time domain, which is conceptually different from that of power-broadening in a two-level atom. It can also be used as a basis for more complicated situations of Doppler-broadened gaseous samples or pump-and-probe spectroscopy. We tested the theory experimentally in an ideal situation of slow pulsed Rb-85 atoms and found excellent agreement. Application to measurements of a branching ratio or a Franck-Condon factor of a diatomic molecule is discussed.
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Collections - College of Science > Department of Physics > 1. Journal Articles
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