Efficiency-enhanced reflective nanosieve holograms

作     者：Samia Osman Hamid Mohammed Dong Zhao Syed Yasir Azeem Xiaoming Goh Shawn J.Tan Jinghua Teng Kun Huang Samia Osman Hamid Mohammed;赵东;Syed Yasir Azeem;Xiaoming Goh;Shawn J.Tan;Jinghua Teng;黄坤

作者机构：Department of Optics and Optical EngineeringUniversity of Science and Technology of ChinaHefei 230026China Singapore 138634Singapore 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2022年第20卷第5期

页      面：48-52页

核心收录：

学科分类：070207[理学-光学] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (Nos. 12134013 and 61875181) USTC Research Funds of the Double First-Class Initiative (No. YD2030002003) Fundamental Research Funds for the Central Universities in China CAS Poineer Hundred Talents Program the A*STAR IRG grant A2083c0058,CRF grant the Centre for Micro and Nanoscale Research and Fabrication, University of Science and Technology of China for the support 

主　　题：metasurfaces nanosieves holograms reflective mirrors 

摘      要：Photon nanosieves,as amplitude-type metasurfaces,have been demonstrated usually in a transmission mode for optical super-focusing,display,and holography,but the sieves with subwavelength size constrain optical transmission,thus leading to low ***,we report reflective photon nanosieves that consist of metallic meta-mirrors sitting on a trans-parent quartz *** illumination,these meta-mirrors offer the reflectance of〜50%,which is higher than the transmission of visible light through diameter-identical *** from this configuration,a meta-mirror-based reflective hologram has been demonstrated with good consistence between theoretical and experimental results over the broadband spectrum from 500 nm to 650 nm,meanwhile exhibiting total efficiency of〜7%.Additionally,if an additional high-reflectance layer is employed below these meta-mirrors,the efficiency can be enhanced further for optical anti-counterfeiting.