| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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High Refractive Index without Absorption in a Ladder-Type System |
| ZENG Zhi-Qiang1,2**, HOU Bang-Pin3**, LIU Fu-Ti1, SHAO Ju-Xiang2 |
1School of Physics and Electronic Engineering, Yibin University, Yibin 644000
2Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644000
3School of Physics and Electronic Engineering, Sichuan Normal University, Chengdu 610066
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| Cite this article: |
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ZENG Zhi-Qiang, HOU Bang-Pin, LIU Fu-Ti et al 2014 Chin. Phys. Lett. 31 034201 |
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Abstract A three-level ladder-type system with vacuum-induced coherence and incoherent pumping is studied to obtain a high refractive index without absorption. It is shown that the enhancement of the refractive index without absorption can be accomplished by choosing the proper values of the incoherent pumping, the angle between the two dipole moments, the probe detuning and the relative phase of the two coherent fields.
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Received: 04 October 2013
Published: 28 February 2014
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| PACS: |
42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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42.50.-p
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(Quantum optics)
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