石墨烯基双曲超材料的可调光学特性及其应用

项目名称： 石墨烯基双曲超材料的可调光学特性及其应用

项目编号： No.61505111

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 戴小玉

作者单位： 深圳大学

项目金额： 20万元

中文摘要： 双曲超材料是一种强各向异性的超材料，已被研究者用于实现各种新颖的光学效应,例如，波导、成像、传感、量子和热学工程等。但是，高损耗、不易主动调控和有限带宽等都限制了双曲超材料的实际应用。石墨烯的出现为实现低损耗、宽带和主动可调的双曲超材料提供了新的途径。本项目将开展石墨烯-电介质多层结构形成的双曲超材料的可调谐光学特性（如透射、反射和吸收等）的研究，揭示各种基本光学特性的调控机理，提出近红外和太赫兹波段的可调谐、低损耗和可工作于宽带的石墨烯双曲超材料的实现方法，并探索石墨烯双曲超材料在调控透射、反射，实现完美吸收、空间滤波和偏振控制等方面的应用为潜在的研究目标。我们也希望将石墨烯双曲超材料的工作扩展到其他二维原子晶体材料上，设计出新一代的超功能器件，为将来的光通信和太赫兹通信提供各种新型器件。

中文关键词： 石墨烯；双曲超材料；滤波器；偏振器

英文摘要： Hyperbolic metamaterial (HMM) is one class of metamaterials with strong anisotropy, and it is a multi-functional platform to realized various kinds of novel optical effects, such as, waveguiding, imaging, sensing, quantum and thermal engineering beyond conventional devices. However, high loss, not easy to control, and band limited have limited the practical application of HMMs. Fortunately, the emergence of graphene provides a new avenue for implementing low loss, tunable, and broadband HMMs. This project will investigate the tunable optical properties (such as, transmission, reflectance and absorption, etc.) of the graphene HMMs constructed by the alternate layers of graphene and dielectric, reveal the tunable mechanism of all kinds of basic optical properties, provide the preparation method for tunable graphene HMMs in the near infrared and terahertz frequencies ranges, realize low loss and broadband HMMs, and explore the practical applications of graphene HMMs in controlling transmission, reflectance, perfect absorption, spatial filtering, and polarization control. We want to extend our graphene HMMs to other two-dimensional atomic crystal materials, design some new generation optical devices with super function, and offer a variety of new devices for the future optical communication and terahertz communication.

英文关键词： graphene;hyperbolic metamaterials ;filters;polarizer