Laser-induced double-dark resonances and double-transparencies in a four-level system
| Autor: | Jian-Feng Sun, Xian-Yang Zhang, Yong-Chang Wang, Yong-Fang Li |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Quantum optics
Physics education.field_of_study Absorption spectroscopy business.industry Electromagnetically induced transparency Population Resonance Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Coupling (physics) Optics law Excited state Electrical and Electronic Engineering Physical and Theoretical Chemistry Atomic physics education business |
| Zdroj: | Optics Communications. 202:97-102 |
| ISSN: | 0030-4018 |
| Popis: | We study the generations of dark resonance and electomagnetically induced transparency (EIT) effects in the four-level system with two coherent fields coupling the transition from upper level to a pair of ground levels and a lower excited state. The quantum interference between two excited pathways results in double-dark resonances and double-transparency holes with adjustable frequencies driven into the absorption spectrum in the atomic system. A clear analytical explanation for our numerical results is presented. It is shown that the relation of detunings of two coherent fields plays an important role in the generations of the coherent population trapping and EIT effects. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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