We report high numerical aperture meta-lenses in the visible spectrum with focal spots as small as 0.65λ. Meta-lenses are based on ultra-thin titanium dioxide metasurface phase masks. They operate in transmission mode and are polarization-insensitive.
Steven J. ByrnesAlan LenefFrancesco AietaFederico Capasso
Haowen LiangQiaoling LinXiangsheng XieQian SunYin WangLidan ZhouLin LiuXiangyang YuJianying ZhouThomas F. KraussJuntao Li
Haowen Liang (5461265)Qiaoling Lin (5461271)Xiangsheng Xie (4481029)Qian Sun (53880)Yin Wang (34938)Lidan Zhou (3742942)Lin Liu (74495)Xiangyang Yu (1615093)Jianying Zhou (506073)Thomas F Krauss (5461268)Juntao Li (33229)
Wei Ting ChenAlexander Y. ZhuMohammadreza KhorasaninejadZhujun ShiVyshakh SanjeevFederico Capasso
Wei Ting Chen (1603057)Alexander Y. Zhu (1640530)Mohammadreza Khorasaninejad (1511461)Zhujun Shi (3923999)Vyshakh Sanjeev (3923996)Federico Capasso (1394371)