Xu Yanli, Zhang Chuan, Li Weimin, Li Rong, Liu Jiangtao, Liu Ze, Wu Zhenhua
College of Mechanical and Electrical Engineering, Guizhou Minzu University, Guiyang 550025, China.
Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100049, China.
Nanophotonics. 2022 Jul 12;11(16):3547-3557. doi: 10.1515/nanoph-2022-0185. eCollection 2022 Sep.
Ultraviolet (UV) electro-optic modulation system based on graphene-plasmonic metamaterials nanomechanical system (NEMS) with superlubricity is investigated. Due to the strong optical absorption intensity of graphene in the UV region and the combination of metamaterial structure based on surface plasmons, the modulation depth of the UV NEMS electro-optic modulator approaches as high as 8.5 times compared to the counterpart modulator in visible light region. Meanwhile, the superlubricity significantly reduces the power consumption of the UV electro-optic modulation system due to its extremely low friction coefficient. It also significantly increases the response speed of the modulator, with response time down to nanoseconds. The modulation voltage can be equal to or less than 150 mV. The proposed electro-optic modulation system has a simple structure and high sensitivity, which is supposed to have important applications in UV optoelectronic devices and systems.
研究了基于具有超润滑性的石墨烯 - 等离子体超材料纳米机械系统（NEMS）的紫外（UV）电光调制系统。由于石墨烯在紫外区域具有很强的光吸收强度以及基于表面等离子体的超材料结构的结合，与可见光区域的对应调制器相比，紫外NEMS电光调制器的调制深度接近高达8.5倍。同时，超润滑性因其极低摩擦系数显著降低了紫外电光调制系统的功耗。它还显著提高了调制器的响应速度，响应时间降至纳秒级。调制电压可以等于或小于150 mV。所提出的电光调制系统结构简单且灵敏度高，有望在紫外光电器件和系统中具有重要应用。
