论文标题
基于位置 - 粉末敏感的巨型羔羊移动
Optical scattering imaging with sub-nanometer precision based on position-ultra-sensitive giant Lamb shift
论文作者
论文摘要
量子发射极的羔羊移位非常接近等离子纳米结构（主要由高阶等离子暗模式引起），可能比自由空间中的三个或多个数量级大，并且对发射器位置和极化非常敏感。我们表明，当等离激元纳米颗粒或尖端通过发射极扫描时，可以从耦合系统的散射频谱倾斜移动中敏感地观察到这种巨大的羔羊移位。基于这些观察结果，我们通过检测散射光谱而不是荧光，提出了一个具有子纳米精度的光学定位和极化显微镜方案，用于量子发射极精度。我们的方法没有荧光淬灭问题，并且在等离子体发射机耦合系统中实现相对容易。此外，我们方法中的样本不需要放置在等离子世界世界的荧光荧光速率内，即使量子发射极略低于介电表面，也可以在各个领域（例如物理学，化学，医学，生命，生命科学科学科学科学）中带来更广泛的应用。
The Lamb shift of a quantum emitter very close to a plasmonic nanostructure, mainly induced by the higher-order plasmonic dark modes, can be three or more orders of magnitude larger than that in the free space and it is ultra-sensitive to the emitter position and polarization. We show that this giant Lamb shift can be sensitively observed from the scattering spectrum dip shift of coupled system when the plasmonic nanoparticle or tip scans through the emitter. Based on these observations, we propose an optical localization and polarization microscopy scheme with sub-nanometer precision for a quantum emitter via detecting the scattering spectrum instead of fluorescence. Our method is free of fluorescence quenching problem and it is relatively easier to be implemented in the plasmon-emitter coupling system. Moreover, the sample in our method does not need to be placed inside a plasmonic picocavity to enhance the radiative fluorescence rate and it also works even if the quantum emitter is slightly below a dielectric surface which can bring about broader applications in various fields, such as physics, chemistry, medicine, life science and materials science.
