Lee Dasol, Kim Minkyung, Rho Junsuk
Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
Department of Biomedical Engineering, Yonsei University, Wonju 26493, Korea.
Micromachines (Basel). 2021 Sep 23;12(10):1142. doi: 10.3390/mi12101142.
A variety of applications using miniaturized optical lenses can be found among rapidly evolving technologies. From smartphones and cameras in our daily life to augmented and virtual reality glasses for the recent trends of the untact era, miniaturization of optical lenses permits the development of many types of compact devices. Here, we highlight the importance of ultrasmall and ultrathin lens technologies based on metamaterials and metasurfaces. Focusing on hyperlenses and metalenses that can replace or be combined with the existing conventional lenses, we review the state-of-art of research trends and discuss their limitations. We also cover applications that use miniaturized imaging devices. The miniaturized imaging devices are expected to be an essential foundation for next-generation imaging techniques.
在快速发展的技术中，可以找到各种使用小型化光学透镜的应用。从我们日常生活中的智能手机和相机，到适应无接触时代最新趋势的增强现实和虚拟现实眼镜，光学透镜的小型化推动了多种紧凑型设备的发展。在此，我们强调基于超材料和超表面的超小超薄透镜技术的重要性。聚焦于可替代现有传统透镜或与之结合的超透镜和超表面透镜，我们回顾了研究趋势的现状并讨论了它们的局限性。我们还介绍了使用小型化成像设备的应用。小型化成像设备有望成为下一代成像技术的重要基础。
