Saturation behavior of parametric four-wave mixing due to two-photon interference effect
Strong pumping of ''extended'' alkali metal vapors near two-photon resonances produces copious stimulated emissions by amplified spontaneous emission or stimulated electronic hyper-Raman scattering, and by phase matched parametric four-wave mixing. The new electromagnetic fields that are generated within the near-resonant nonlinear medium can strongly influence the total atomic response through processes including interferences, level shifting, and population transfer mechanisms. The internally generated fields can, e.g., suppress transition probabilities for processes involving excitations (SEHRS and two-photon excitations) and produce gain saturation for PFWM processes. This paper discusses the saturation behavior. 8 refs., 2 figs.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5898559
- Report Number(s):
- CONF-890652-1; ON: DE89014076
- Resource Relation:
- Conference: 6. Rochester conference on coherence and quantum optics, Rochester, NY, USA, 26 Jun 1989; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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