摘要
极化激元是光与不同极化子相互作用形成的半光半物质的准粒子,可用于亚波长尺度的光场调控,在光学成像、非线性效应增强及新型超构材料设计等领域扮演着举足重轻的角色。近年来,随着人们对转角范德华尔斯材料体系的制备工艺和物性研究的不断深入,其中许多新奇的极化激元现象也被揭示。本文综述了近年来转角范德华尔斯材料在光学领域的研究进展,包含转角石墨烯体系中的等离极化激元,转角二维过渡金属硫化物中的激子极化激元与六方氮化硼(h-BN)与α-MoO_(3)体系中的声子极化激元等。最后展望转角二维范德华尔斯材料中的极化激元在纳米尺度下光与物质相互作用的有效控制方面所展现的巨大潜力。
Polaritons are half-light,half-matter quasi-particles formed by the interaction of light and different polarons.They can be applied for light-control at sub-wavelength scales and have shown intriguing potential for optical imaging,enhanced nonlinear optics and novel metamaterial design.Recent advances in the twistronics of two-dimensional van der Waals materials have enabled a vast variety of extraordinary phenomena associated with moire?physics,which also inspired new direction for the research of polaritons.In this article,we briefly review the rise of"twist-photonics",including plasmon polaritons in twisted graphene system,exciton polaritons in a twisted transition-metal dichalcogenide system and phonon polaritons in a twisted h-BN andα-MoO_(3) system.Twist van der Waals materials may offer new directions to manipulate light-matter interactions at nanoscale.
作者
郑嘉璐
戴志高
胡光维
欧清东
张津瑞
甘雪涛
仇成伟
鲍桥梁
ZHENG Jia-lu;DAI Zhi-gao;HU Guang-wei;OU Qing-dong;ZHANG Jin-rui;GAN Xue-tao;QIU Cheng-wei;BAO Qiao-liang(School of Materials Science and Engineering,Xi'an Shiyou University,Xi'an 710065,China;Faculty of Materials Science and Chemistry,China University of Geosciences,Wuhan 430074,China;Department of Electrical and Computer Engineering,National University of Singapore,Singapore 117583,Singapore;Department of Materials Science and Engineering,Monash University,Melbourne 3800,Australia;School of Physical Science and Technology,Northwestern Polytechnical University,Xi'an 710072,China;Department of Applied Physics,The Hong Kong Polytechnic University,Hong Kong 999077,China)
出处
《中国光学》
EI
CAS
CSCD
北大核心
2021年第4期812-822,共11页
Chinese Optics
基金
深圳市南山区“领航计划”(No.LHTD20170006)
陕西省自然科学基础研究计划(No.2021JQ-603)。
关键词
转角电子学
二维材料
范德华尔斯材料
极化激元
twistronics
two-dimensional materials
van der Waals materials
polaritons
