Nonlinear theory of laser-induced dipolar interactions in arbitrary geometry
Nonlinear theory of laser-induced dipolar interactions in arbitrary geometry
复制标题
任意几何形状中激光诱导偶极相互作用的非线性理论
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
G. Kurizki
中科院分区：
文献类型：
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作者：
E. Shahmoon;G. Kurizki
受到激光辐射的可极化偶极子，例如原子、分子或纳米粒子，可能会相互吸引或排斥。我们推导出一种通用形式，其中任何几何形状和任何激光强度的激光诱导偶极子相互作用（LIDDI）都可以根据激光修饰的偶极子之间的共振偶极子相互作用（RDDI）来描述。这种方法提供了一种在一般几何中分析 LIDDI 的简单途径。我们的总体结果揭示了由于对激光的非线性偶极响应而产生的 LIDDI 效应，这是以前未被解释过的。讨论了这些非线性效应的根源。我们的一般形式主义是用空腔中原子之间的 LIDDI 来说明的。
Polarizable dipoles, such as atoms, molecules, or nanoparticles, subject to laser radiation may attract or repel each other. We derive a general formalism in which such laser-induced dipole-dipole interactions (LIDDIs) in any geometry and for any laser strength are described in terms of the resonant dipole-dipole interaction (RDDI) between dipoles dressed by the laser. This approach provides a simple route towards the analysis of LIDDI in a general geometry. Our general results reveal LIDDI effects due to nonlinear dipolar response to the laser, previously unaccounted for. The origin of these nonlinear effects is discussed. Our general formalism is illustrated for LIDDI between atoms in a cavity.