Wen Yuxiang, Wang Kunpeng, Kuang Dengfeng
Institute of Modern Optics, Nankai University, Tianjin, 300350, China.
Beijing Institute of Tracking and Telecommunications Technology, Beijing, 100094, China.
Sci Rep. 2019 Mar 5;9(1):3475. doi: 10.1038/s41598-019-39804-z.
Metasurface, fluorescent microscopy and scanning near-field optical microscopy can improve the resolution of microscopes remarkably, while the resolution of the telescope remains unimproved constrained by its giant objective lenses and distant targets. Here we put forward a way to raise the resolution of telescopes simply by adding a binary optical thin surface around its focal plane. Simulation results show that the surface can raise the image quality in the Cassegrain and Kepler telescope. By nano-lathe, we fabricated a designed binary surface and experiment it in the Kepler telescope. The results are consistent with those of simulation results. More details of the calibrated target are resolvable on the image plane after applying the binary optical surface. It proves that the binary optic surface can make contribute to the resolution of the telescope, thus is beneficial in astronomy, military surveillance field.
超表面、荧光显微镜和扫描近场光学显微镜可以显著提高显微镜的分辨率，而望远镜的分辨率由于其巨大的物镜和遥远的目标而仍未得到改善。在此，我们提出一种方法，只需在望远镜焦平面周围添加一个二元光学薄表面就能提高其分辨率。模拟结果表明，该表面可以提高卡塞格伦望远镜和开普勒望远镜的图像质量。通过纳米车床，我们制作了一个设计好的二元表面并在开普勒望远镜中进行实验。结果与模拟结果一致。应用二元光学表面后，校准目标的更多细节在像平面上可分辨。这证明二元光学表面有助于提高望远镜的分辨率，因此在天文学、军事监视领域有益。
