论文标题
kerker效应，超散射和散射原子天线的黑色状态
Kerker Effect, Superscattering, and Scattering Dark State in Atomic Antennas
论文作者
论文摘要
我们研究散射现象，例如kerker效应，超散射和散射在亚波长原子天线中的暗状态，该天线由仅具有电偶极转变的原子组成。我们表明，原子天线可以根据结构的几何形状和撞击光的方向表现出任意大的或小的散射横截面。我们还证明，只有电偶极转换的原子可以表现出一个方向辐射模式，当放置在某个构型中时，反向散射为零。这是一种被称为kerker效应的现象的特殊情况，通常发生在电气和磁过渡的情况下。我们的发现为设计高方向发射器，非放射原理以及基于单独控制的原子的高度散射对象打开了途径。
We study scattering phenomena such as the Kerker effect, superscattering, and scattering dark states in a subwavelength atomic antenna consisting of atoms with only electric dipole transitions. We show that an atomic antenna can exhibit arbitrarily large or small scattering cross sections depending on the geometry of the structure and the direction of the impinging light. We also demonstrate that atoms with only an electric dipole transition can exhibit a directional radiation pattern with zero backscattering when placed in a certain configuration. This is a special case of a phenomenon known as the Kerker effect, which typically occurs in the presence of both electric and magnetic transitions. Our findings open a pathway to design highly directional emitters, nonradiating sources, and highly scattering objects based on individually controlled atoms.
