论文标题
反射共聚焦成像的复合超振荡镜头
Compound Super-oscillation Lens for Reflective Confocal Imaging
论文作者
论文摘要
超级振荡镜头（SOL）可以实现超分辨率的聚焦，但必须在较弱的热点和较高的边带方面进行权衡。我们提出了一个单一的复合溶胶，以原则上没有其他镜头来实现反射共聚焦成像。设计的溶胶由外部镜头和内部镜头组成，该镜头分别发挥了聚焦晶状体和集体晶状体的作用。结果，可以同时实现聚焦和收集功能。改进的系统可以通过超高分辨率（<0.34λ/Na，Na代表数值孔径）获得出色的成像性能，并且几乎可以忽略不计的侧叶比，并且没有侧带，并且证明其优于常规的激光扫描共聚焦显微镜和单溶胶。该技术对于超分辨率成像和生物医学科学中的各种应用都有吸引力。
The super-oscillation lens (SOL) can achieve super-resolution focusing but have to trade-off with weaker hotspots and higher sidebands. We propose a single compound SOL to achieve reflective confocal imaging in principle without additional lenses. The designed SOL consists of an outer lens and an inner lens which play the role of focusing lens and collective lens respectively. As a result, focusing and collecting functions can be simultaneously realized. The improved system can achieve excellent imaging performance with an ultra-high resolution (<0.34λ/NA, NA stands for numerical aperture), and almost negligible side lobe ratio and no side bands, which proved superior to conventional laser scanning confocal microscopy and single SOL. This technology can be attractive for a variety of applications in super-resolution imaging and biomedical sciences.
