Advancements in high refractive index media:from quantum coherence in atomic systems to deep subwavelength coupling in metamaterials[Invited]  

作　　者：Leena Singh Weili Zhang Leena Singh;张伟力(School of Electrical and Computer Engineering,Oklahoma State University,Stillwater,Oklahoma 74078,USA)

机构地区：[1]School of Electrical and Computer Engineering,Oklahoma State University,Stillwater,Oklahoma 74078,USA

出　　处：《Chinese Optics Letters》2020年第6期60-66,共7页中国光学快报（英文版）

摘　　要：Refractive index enhancement is crucial in the fields of lithography,imaging,optical communications,solar devices,and many more.We present a review of advancements in the process of designing high refractive index metamaterials,starting from quantum coupling and photonic bandgap materials to metamaterials utilizing deep subwavelength coupling to achieve ever-high values of refractive index.A particular attention is given to experimentally verified schemes in engineering a high index of refraction.The understanding of the evolution of material design from intrinsic electronic states manipulation to meta-atoms design is not only fascinating but also a prerequisite to developing successful devices and applications.

关 键 词：high refractive index METAMATERIALS review sub-wavelength coupling quantum coherence TERAHERTZ 

分 类 号：TB34[一般工业技术—材料科学与工程]