Controlling quasibound states in a one-dimensional continuum through an electromagnetically-induced-transparency mechanism
Controlling quasibound states in a one-dimensional continuum through an electromagnetically-induced-transparency mechanism
复制标题
通过电磁感应透明机制控制一维连续体中的准束缚态
DOI：
10.1103/physreva.78.053806
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发表时间：
2008-11-01
影响因子：
2.9
通讯作者：
Sun, C. P.
中科院分区：
文献类型：
--
作者：
Gong, Z. R.;Ian, H.;Sun, C. P.
研究了一维耦合腔阵列中单光子的相干散射过程，其中一个λ型三能级原子被置于阵列中的一个腔中，并表现为一个功能量子节点.我们发现，通过电磁感应透明机制，λ型的光子晶体负完全控制入射光子的反射和透射沿着腔阵列。我们还证明了在由两个相距较远的双光子晶体N作为两个端面镜构成的次级腔中，单光子准束缚态的出现，由此我们有动力设计一个量子相干的全光单光子存储器件。
We study the coherent scattering process of a single photon confined in an one-dimensional (1D) coupled cavity-array, where a Lambda-type three-level atom is placed inside one of the cavities in the array and behaves as a functional quantum node (FQN). We show that, through the electromagnetically-induced-transparency mechanism, the Lambda-type FQN bears complete control over the reflection and transmission of the incident photon along the cavity array. We also demonstrate the emergence of a quasibound state of the single photon inside a secondary cavity constructed by two distant FQN's as two end mirrors, from which we are motivated to design an all-optical single photon storage device of quantum coherence.