Engineering Research Center of Optical Instrument and System, Ministry of Education; Shanghai Key Lab of Modern Optical System, College of Optical-Electrical Information and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.
Sci Rep. 2017 Jul 18;7(1):5712. doi: 10.1038/s41598-017-06146-7.
By eliminating the spherical aberrations of microsphere we derived a simple but useful formula on the focusing of dielectric microsphere. On basis of this formula, not only can researchers determine the parameters of an optical microsphere system with super-resolution, but they can also perform parameter transformation. In order to facilitate the application, the principle of parameter transformation was summarized into three kinds of case listed in Table 1, which were all demonstrated numerically with concrete examples by finite-difference time-domain method. This formula will be conducive to the development of applications based on microsphere, such as photonic nano-jet lithography, microsphere nano-scope.
通过消除微球的球差，我们推导出一个关于介电微球聚焦的简单但有用的公式。基于该公式，研究人员不仅可以确定具有超分辨率的光学微球系统的参数，还可以进行参数变换。为了便于应用，将参数变换原理总结为表 1 中列出的三种情况，并用有限时域差分法对具体示例进行了数值验证。该公式将有助于基于微球的应用的发展，如光子纳米喷射光刻、微球纳米显微镜。
