增强光与单层石墨烯相互作用的理论及实验研究

Graphene optoelectronic devices with wide spectral response, fast speed, antidamage,low quantum noise and high sensitivity, can be used in the field of full band detection, optical communication, optical interconnection, precision measurement and single photon detection, and are a key field of graphene applications. Furthermore, the graphene optoelectronic devices also provide the military application prospect in infrared detection,cloking, and terahertz technology. However, a weak interaction between graphene and light (light absorption rate is about 2.3%) is a key obstacle to improve the performance of graphene optoelectronic devices. So, how to improve the interaction of light with the single layer graphene become the key scientific problems. The project aims to enhance the interaction between waves and single-layer graphene.Considering the international research status and different optical characteristics of graphene in visible, near infrared and terahertz range, the project intends to research the strong enhancement mechanism of visible and near infrared light-graphene interaction, and broadband single-layered graphene complete optical absorption in the far infrared and THz range. In addtion,the project also focus on the application of enhancement interaction mechanism and method in integrated optoelectronics

石墨烯光电子器件具有响应光谱宽、速度快、抗毁伤、量子噪声低和灵敏度高等特点，可用于全波段探测、高速光通信、光互联、精密测距、单光子探测等领域，是石墨烯应用的重点方向, 此外, 石墨烯光电子器件在红外探测与隐身、太赫兹技术等方面亦具有很强的军事应用前景。然而，单层石墨烯与光的相互作用较弱（光吸收率约为2.3%）, 是制约石墨烯光电子器件性能进一步提高的关键障碍。所以, 如何从机理上提高光与单层石墨烯的相互作用成为关键科学问题。本项目致力于增强波与单层石墨烯的相互作用，同时考虑到石墨烯在可见光、近红外波段和中远红外、太赫兹波段具有不同的光学特性和国际研究现状，拟具体开展增强可见光、近红外波段光与石墨烯相互作用机理及实验研究；中远红外、太赫兹波段石墨烯宽谱完美吸收机理及实验研究；以及探索本项目提出的增强波与单层石墨烯相互作用机理和方法在集成光电子领域的具体应用。

石墨烯光电子器件具有响应光谱宽、速度快、抗毁伤、量子噪声低和灵敏度高等特点，可用于全波段探测、高速光通信、光互联、精密测距、单光子探测等领域，是石墨烯应用的重点领域, 此外, 石墨烯光电子器件在红外探测与隐身、太赫兹技术等方面亦具有很强的军事应用前景。然而，单层石墨烯与光的相互作用较弱（光吸收率约为2.3%）, 是制约石墨烯光电子器件性能进一步提高的关键障碍。所以, 如何从机理上提高光与单层石墨烯的相互作用成为关键科学问题。本项目致力于增强波与单层石墨烯的相互作用，同时考虑到石墨烯在可见光、近红外波段和中远红外波、太赫兹波段具有不同的光学特性和国际研究现状，具体开展了增强可见光、近红外波段波导光与石墨烯相互作用机理及实验研究；中远红外、太赫兹波段石墨烯宽谱完美吸收机理研究；以及探索了本项目提出的增强波与单层石墨烯相互作用机理和方法在偏振变换和光调制等方面的具体应用。项目共发表学术论文23篇, 培养博士研究生5人, 硕士研究生9人。