论文标题
明亮的光学本本特征，大约1 nm $^3 $音量
Bright Optical Eigenmode with about 1 nm $^3$ Volume
论文作者
论文摘要
在具有很小体积的本本征中浓缩光场对于基本水平的轻质相互作用和基础上的新技术至关重要。在过去的几十年中，研究人员调查了各种缩小光线的方法，到目前为止，在量子光度定义下，已经减少了光学特征模量的数量，降低到几个10 nm3。在这里，我们报告了一类极度局部的本征码的发现，表征和工程，这些局部局部是在金属宿主纳米颗粒上的原子伸出率的共鸣，并具有1 nm3以下的量子光学模式。从理论上讲，我们可以通过辐射效率达到30％的辐射效率使这些极为局部的模式变得明亮，并提供高达4x10^7倍的强度增强。具有与光子发射器相当的体积的明亮本征的存在预见的是令人兴奋的新光学物理，例如与单个光学发射器，Angstrom分辨率光学成像和原子尺度单分子光化学相耦合。
Concentrating optical field in an eigenmode with a tiny volume is vitally important for light-matter interactions at the fundamental level and underpins new technologies. In the past decades, researchers have investigated various approaches to shrink light and so far managed to reduce the volume of optical eigenmodes, under the quantum-optical definition, down to several ten nm3. Here we report on the discovery, characterization and engineering of a class of extremely localized eigenmodes that are resonances of atomistic protrusions on a metallic host nanoparticle and feature quantum-optical mode volumes of below 1 nm3. We theoretically demonstrate that these extremely localized modes can be made bright with radiation efficiencies reaching 30% and provide up to 4x10^7 times intensity enhancement. The existence of bright eigenmodes with the volume comparable to a photon emitter foresees exciting new optical physics, such as ultrastrong coupling with single optical emitters, angstrom-resolution optical imaging, and atomic-scale single-molecule photochemistry.
