Influence of Doppler effect on the phenomenon of electromagnetically induced transparency

Qiyong Tao; Guiyin Zhang; Haiming Zheng

doi:10.1117/12.2247742

3 November 2016 Influence of Doppler effect on the phenomenon of electromagnetically induced transparency

Qiyong Tao, Guiyin Zhang, Haiming Zheng

Proceedings Volume 10029, Quantum and Nonlinear Optics IV; 100291I (2016) https://doi.org/10.1117/12.2247742
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

Electromagnetically induced transparency (EIT) is a significant nonlinear optical phenomenon. Based on the theory of density matrix equation, we presented the influence of Doppler effect on EIT. A cascade type three-level system and Na atomic vapor is adopted during the course. The results showed that EIT is determined by Rabi frequency of the couple and probing field. It is independent of temperature usually. But when we take Doppler effect into account, it is found that the full transparency appeared at the condition of Ω_P=0.01GHz, Ω_C=1GHz will vary with temperature. An obvious transparent window can be observed only when the temperature is less than 50K. With the increase of temperature, EIT phenomenon disappeared quickly. At room temperature, we can see that the double peaks of Aulter-Townes will instead of the EIT transparent window as Rabi frequency of the couple field is larger than 1.5GHz.

Citation Download Citation

Qiyong Tao, Guiyin Zhang, and Haiming Zheng "Influence of Doppler effect on the phenomenon of electromagnetically induced transparency", Proc. SPIE 10029, Quantum and Nonlinear Optics IV, 100291I (3 November 2016); https://doi.org/10.1117/12.2247742

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