In order to achieve the phase-sensitive probe gain without population inversion, we investigate a four-level atomic system, where the probe field is controlled by a three-level closed loop subsystem. In the case of three-photon resonance, large steady-state inversionless probe gain can be obtained.
Phase and amplitude control of the group velocity in a two-level system with shelving state
โ Scribed by I. Azuri; A. Eilam; A.V. Sharypov; A.D. Wilson-Gordon; H. Friedmann
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 625 KB
- Volume
- 283
- Category
- Article
- ISSN
- 0030-4018
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