典型文献
An analytical model for cross-Kerr nonlinearity in a four-level N-type atomic system with Doppler broadening
文献摘要：
We present an analytical model for cross-Kerr nonlinear coefficient in a four-level N-type atomic medium under Doppler broadening.The model is applied to 87Rb atoms to analyze the dependence of the cross-Kerr nonlinear coefficient on the external light field and the temperature of atomic vapor.The analysis shows that in the absence of electromagnetically induced transparency (EIT) the cross-Kerr nonlinear coefficient is zero,but it is significantly enhanced when the EIT is established.It means that the cross-Kerr effect can be turned on/off when the external light field is on or off.Simultaneously,the amplitude and the sign of the cross-Kerr nonlinear coefficient are easily changed according to the intensity and frequency of the external light field.The amplitude of the cross-Kerr nonlinear coefficient remarkably decreases when the temperature of atomic medium increases.The analytical model can be convenient to fit experimental observations and applied to photonic devices.
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作者姓名：
Dinh Xuan Khoa;Nguyen Huy Bang;Nguyen Le Thuy An;Nguyen Van Phu;Le Van Doai
作者机构：
Vinh University,182 Le Duan Street,Vinh City,Vietnam
文献出处：
引用格式：
[1]Dinh Xuan Khoa;Nguyen Huy Bang;Nguyen Le Thuy An;Nguyen Van Phu;Le Van Doai-.An analytical model for cross-Kerr nonlinearity in a four-level N-type atomic system with Doppler broadening)[J].中国物理B（英文版）,2022(02):350-356
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0.442402
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