论文标题
固体浸入式金属剂，用于高收集效率的定向单分子发射
Solid immersion metalens for directional single molecule emission with high collection efficiency
论文作者
论文摘要
我们提出了有效的高数值孔浸入金属概念以进行荧光显微镜的模拟。该技术利用了界面偶极子的优先发射到高折射率底物与金属和常规管透镜相结合的高折射率底物中的优先发射。因此，我们在高折射率底物的相对侧模拟了偶极发射和全dielectric跨表面。我们的计算预测偶极子收集效率高达87％。通过成像系统的模拟光束传播沿光轴显示出卓越的性能，而畸变会随着越来越多的视野而积聚。这些像差可以通过使用具有优化的非纤维相曲线的元图来控制。偶极发射的高收集效率表明，这种紧凑的固体浸入透镜对荧光成像有效，包括用于量子光学应用的单个荧光中心。
We present simulations of an efficient high numerical aperture solid immersion metalens concept for fluorescence microscopy. The technique exploits the preferential emission of interfacial dipoles into a high refractive index substrate combined with a metalens and a conventional tube lens for imaging them. We have thus simulated dipole emission and an all-dielectric metasurface on opposite sides of a high refractive index substrate. Our calculations predict dipole collection efficiencies of up to 87 percent. The simulated beam propagation through the imaging system shows excellent performance along the optical axis, with aberrations accumulating with increasing field of view. These aberrations can be controlled by using a metasurface with an optimized non-hyperbolic phase profile. The high collection efficiency of dipole emission suggests this compact solid immersion lens would be effective for fluorescence imaging including single fluorescent centres for quantum optical application.
