Atomically thin optical lenses and gratings

作     者：Jiong Yang Zhu Wang Fan Wang Renjing Xu Jin Tao Shuang Zhang Qinghua Qin Barry Luther-Davies Chennupati Jagadish Zongfu Yu Yuerui Lu 

作者机构：Research School of EngineeringCollege of Engineering and Computer Sciencethe Australian National UniversityCanberraACT 2601Australia Department of Electrical and Computer EngineeringUniversity of WisconsinMadisonWI 53706USA Department of Electronic Materials EngineeringResearch School of Physics and Engineeringthe Australian National UniversityCanberraACT 2601Australia CUDOSLaser Physics CentreResearch School of Physics and Engineeringthe Australian National UniversityCanberraACT 2601Australia 

出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)

年 卷 期：2016年第5卷第1期

页      面：562-569页

核心收录：

学科分类：0808[工学-电气工程] 080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 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：support from the ACT node of the Australian National Fabrication Facility(ANFF)and,particularly support from an ANU PhD scholarship the Office of Naval Research(USA)under grant number N00014-14-1-0300 the Australian Research Council(grant number DE140100805) the ANU Major Equipment Committee 

主　　题：atomically thin grating micro-lens MoS2 two-dimensional 

摘      要：Two-dimensional(2D)materials have emerged as promising candidates for miniaturized optoelectronic devices due to their strong inelastic interactions with *** the other hand,a miniaturized optical system also requires strong elastic light–matter interactions to control the flow of *** we report that a single-layer molybdenum disulfide(MoS2)has a giant optical path length(OPL),around one order of magnitude larger than that from a single-layer of *** such giant OPL to engineer the phase front of optical beams we have demonstrated,to the best of our knowledge,the world’s thinnest optical lens consisting of a few layers of MoS2 less than 6.3 nm *** taking advantage of the giant elastic scattering efficiency in ultra-thin high-index 2D materials,we also demonstrated high-efficiency gratings based on a single-or few-layers of *** capability of manipulating the flow of light in 2D materials opens an exciting avenue towards unprecedented miniaturization of optical components and the integration of advanced optical *** importantly,the unique and large tunability of the refractive index by electric field in layered MoS2 will enable various applications in electrically tunable atomically thin optical components,such as micro-lenses with electrically tunable focal lengths,electrical tunable phase shifters with ultra-high accuracy,which cannot be realized by conventional bulk solids.