Understanding wide field-of-view flat lenses:an analytical solution[Invited]  

作　　者：杨帆 安森松 Mikhail Y.Shalaginov 张华亮 胡崛隽 古田 Fan Yang;Sensong An;Mikhail Y.Shalaginov;Hualiang Zhang;Juejun Hu;Tian Gu(Department of Materials Science&Engineering,Massachusetts Institute of Technology,Cambridge,Massachusetts 02139,USA;Department of Electrical&Computer Engineering,University of Massachusetts Lowell,Lowell,Massachusetts 01854,USA;Materials Research Laboratory,Massachusetts Institute of Technology,Cambridge,Massachusetts 02139,USA)

机构地区：[1]Department of Materials Science&Engineering,Massachusetts Institute of Technology,Cambridge,Massachusetts 02139,USA [2]Department of Electrical&Computer Engineering,University of Massachusetts Lowell,Lowell,Massachusetts 01854,USA [3]Materials Research Laboratory,Massachusetts Institute of Technology,Cambridge,Massachusetts 02139,USA

出　　处：《Chinese Optics Letters》2023年第2期111-118,共8页中国光学快报（英文版）

基　　金：supported by the Defense Advanced Research Projects Agency Defense Sciences Office(DSO)Program,EXTREME Optics and Imaging(EXTREME)(No.HR00111720029);MIT Skoltech Seed Fund Program,and MIT Deshpande Center for Technological Innovation。

摘　　要：Wide field-of-view(FOV)optics are widely used in various imaging,display,and sensing applications.Conventional wide FOV optics rely on complicated lens assembly comprising multiple elements to suppress coma and other Seidel aberrations.The emergence of flat optics exemplified by metasurfaces and diffractive optical elements(DOEs)offers a promising route to expand the FOV without escalating complexity of optical systems.To date,design of large FOV flat lenses has been relying upon iterative numerical optimization.Here,we derive,for the first time,to the best of our knowledge,an analytical solution to enable computationally efficient design of flat lenses with an ultra-wide FOV approaching 180°.This analytical theory further provides critical insights into working principles and otherwise non-intuitive design trade-offs of wide FOV optics.

关 键 词：metasurface metalens FIELD-OF-VIEW 

分 类 号：TH74[机械工程—光学工程]