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Phase Control of Electromagnetically Induced Grating in a Doppler-Broadened Λ-Type Three-Level System

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Abstract

We theoretically investigate the phenomena of electromagnetically induced grating in a doppler-broadened Λ-type three-level atomic system with the spontaneously generated coherence (SGC) effect enhanced by an incoherence pump. It is found that the model can effectively diffract a weak probe field into high-order direction. We attribute the enhancement of diffraction mainly to the quantum interference resulting from the cross coupling between the two decay pathways. The diffraction efficiency behaves phase and doppler broadening-dependent phenomena, and can be greatly modulated by the SGC effect. Compared to the counter-propagating case, the co-propagating setting is more suitable for the purpose considered in this paper due to the effectiveness of Doppler-free.

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Acknowledgements

This research was supported by the National Natural Science Foundation of China (Grant No. 11304174), Natural Science Foundation of Shandong Province (Grant No. ZR2013AQ010), the Science and Technology Program of High Education of Shandong (Grant No. J11LG07), and the Qingdao Science and Technology Program Fundamental Research (Grant No. 12-1-4-4-(6)-GCH).

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Authors and Affiliations

  1. School of Science, Qingdao Technological University, Qingdao, 266033, People’s Republic of China

    Tian-Hui Qiu, Hong-Yang Ma, Chun-Hong Zheng, Li-Bo Chen & Qiang Cheng

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  1. Tian-Hui Qiu
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  2. Hong-Yang Ma
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  3. Chun-Hong Zheng
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  4. Li-Bo Chen
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Correspondence to Tian-Hui Qiu.

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Qiu, TH., Ma, HY., Zheng, CH. et al. Phase Control of Electromagnetically Induced Grating in a Doppler-Broadened Λ-Type Three-Level System. Int J Theor Phys 54, 2354–2361 (2015). https://doi.org/10.1007/s10773-014-2459-0

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  • DOI: https://doi.org/10.1007/s10773-014-2459-0

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