利用三阶非线性介质实现光子反聚束和非传统光子阻塞  

Antibunching and unconventional photon blockade with third-order nonlinearity

作　　者：李佳城 明莹[1] 刘洪雨 LI Jiacheng;MING Ying;LIU Hongyu(College of Science,Yanbian University,Yanji 133002,China)

机构地区：[1]延边大学理学院,吉林延吉133002

出　　处：《延边大学学报（自然科学版）》2018年第2期120-123,共4页Journal of Yanbian University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(11647069)

摘　　要：基于三阶克尔非线性的非传统光子阻塞,计算由一个耦合弱克尔非线性介质的光学腔和一个机械振子组成的系统的归一化二阶关联函数,获得了强的光子反聚束效应及强反聚束的优化条件.数值模拟表明:零延时二阶关联函数的稳态解与模拟数值结果相吻合;优化条件下,三阶非线性相互作用系数取较大值时可获得强反聚束效应.The unconventioanal photon blockade is based onχ（3）Kerr nonliearity.The normalized secondorder correlation function is calculated for a system of a cavity modes with weak Kerr nonlinearity and a mechanical resonaor.The optimal conditions for strong antibunching are found by analytic calculations,which coincide well with the numerical results.The numerical simulation shown that the steady solution of the two order correlation function at zero delay are very good with the numerical results.When the Kerr non-linear interaction strength is larger,the effect of strong antibunching is remarkable under the optimal conditions.

关 键 词：光子阻塞 克尔非线性 反聚束 

分 类 号：O431[机械工程—光学工程]