范德华尔斯材料在转角光学中的研究进展

郑嘉璐; 戴志高; 胡光维; 欧清东; 张津瑞; 甘雪涛; 仇成伟; 鲍桥梁

doi:10.37188/CO.2021-0023

范德华尔斯材料在转角光学中的研究进展

doi: 10.37188/CO.2021-0023

郑嘉璐^1, ,,
戴志高²,
胡光维³,
欧清东⁴,
张津瑞¹,
甘雪涛⁵,
仇成伟^3, ,,
鲍桥梁^{4, 6, ,}

1.
西安石油大学材料科学与工程学院，陕西西安 710065
2.
中国地质大学（武汉）材料与化学学院，湖北武汉 430074
3.
新加坡国立大学电子与计算机工程系，新加坡 117583
4.
蒙纳士大学材料科学与工程学院，维多利亚墨尔本 3800
5.
西北工业大学物理科学与技术学院，陕西西安 710072
6.
香港理工大学应用物理系，香港 999077

基金项目: 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)

详细信息

作者简介:
郑嘉璐（1991—），男，陕西西安人，博士，硕士生导师。研究方向为纳米材料的光电性能研究及在光电器件中的应用。2009年入读中南大学材料学院，并参与中南大学与澳大利亚蒙纳士大学“2+2”联合培养项目；2014年同获两校学士学位；2014年以博士全额奖学金入读蒙纳士大学材料科学与工程学院；2018年获蒙纳士大学博士学位；2019年7月入职西安石油大学。已在Angewandte Chemie、ACS Applied Materials & Interfaces、Nanoscale等期刊上发表论文7篇；Email：zhengjialu_xsy@163.com

仇成伟（1981—），男，浙江嘉兴人，新加坡国立大学电子与计算机工程系的副教授（tenure），工学院“院长讲席教授”。研究方向为电磁散射理论，结构表面和结构光场，以及光力操控，（光学、声学、热学）超材料与超表面，低维材料光电子材料与器件。已在Science，Nature，Nature Nanotechnology，Nature Materials，Nature Photonics，Light：Science and Applications，PNAS，PRL等期刊发表论文300余篇。2019年与2020年Clarivate Analytics高被引学者。现任eLight杂志（Springer Nature 和长春光机所联合创办）创刊主编。Email：chengwei.qiu@nus.edu.sg

鲍桥梁（1979—），男，湖北黄冈人，2016年受聘为蒙纳士大学材料科学与工程系副教授（tenure），入选澳大利亚科研委员会“未来研究员”奖励计划。致力于研究石墨烯光子学和光电子器件，以及受限空间的光与物质相互作用与极化激元（等离子体极化激元、激子极化激元和声子极化激元等），研究工作曾入选“2018中国光学十大进展（基础研究类）”和Physics World网站2020年度“世界物理十大突破”。已在Nature，Nature Materials，Nature Photonics，Nature Chemistry，Light：Science and Applications，Nature Communications等期刊发表论文200余篇，2018至2020年连续入选Clarivate Analytics高被引学者。Email：qiaoliang.bao@gmail.com

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出版历程
- 收稿日期: 2021-01-25
- 修回日期: 2021-02-26
- 网络出版日期: 2021-05-08
- 刊出日期: 2021-07-01

Twisted van der Waals materials for photonics

1.
School of Materials Science and Engineering, Xi'an Shiyou University, Xi'an 710065, China
2.
Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
3.
Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
4.
Department of Materials Science and Engineering, Monash University, Melbourne 3800, Australia
5.
School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
6.
Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong 999077, China

Funds: Supported by Shenzhen Nanshan District Pilotage Team Program (No. LHTD20170006); the Natural Science Foundation Research Project of Shaanxi Province (No. 2021JQ-603)

More Information

Corresponding author: zhengjialu_xsy@163.com; chengwei.qiu@nus.edu.sg; qiaoliang.bao@gmail.com

摘要

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-MoO₃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。
- 转角电子学 /
- 二维材料 /
- 范德华尔斯材料 /
- 极化激元
Abstract: 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 moiré 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 and α-MoO₃ system. Twist van der Waals materials may offer new directions to manipulate light-matter interactions at nanoscale.
- twistronics /
- two-dimensional materials /
- van der Waals materials /
- polaritons

HTML全文

图 1 （a）红外s-SNOM 测量转角双层石墨烯的示意图^[15]；（b）显示转角双层石墨烯中由孤子超晶格形成的光子晶体（左）；转角双层石墨烯样品的TEM 暗场图像（右）^[15]；（c）石墨烯/h-BN 电子能带结构的三维模拟结构图^[26]

Figure 1. (a) Schematic of the IR nano-imaging of twisted bilayer graphene (TBG). Reproduced with permission. Copyright 2018, Science (New York, N.Y.); (b) (Left) Visualizing the nano-light photonic crystal formed by the soliton lattice. (Right) Dark-field TEM image of a TBG sample. Reproduced with permission. Copyright 2018, Science (New York, N.Y.); (c) 3D representation of the electronic band structure of graphene/h-BN. Reproduced with permission. Copyright 2015, Nat Mater.

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图 2 （a）层间激子的莫尔电位^[16]；（b）K谷激子的空间图^[16]；（c）被困在莫尔电位中的激子示意图^[17];（d）单层WSe₂和WS₂区域上测得的偏振相关的二次谐波信号图^[18]；（e）MoSe₂/WS₂的能带示意图^[19]；（f）MoSe₂/WS₂的光致发光图像^[19]

Figure 2. (a) The moiré potential of the interlayer exciton transition. Reproduced with permission. Copyright 2019, Nature; (b) Spatial map of the optical selection rules for K-valley excitons. Reproduced with permission. Copyright 2019, Nature; (c) Schematic of an exciton trapped in a moiré potential site. Reproduced with permission. Copyright 2019, Nature; (d) The polarization-dependent second harmonic generation signal measured on the monolayer WSe₂ and WS₂. Reproduced with permission. Copyright 2019, Nature; (e) Schematic of the MoSe₂/WS₂ band structure; (f) The PL image of MoSe₂/WS₂. Reproduced with permission. Copyright 2019, Nature.

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图 3 （a）数值模拟显示转角α-MoO₃晶体在固定频率下其能带面的拓扑变换；（b）s-SNOM 实验测试的近场图像显示双层α-MoO₃转角体系中的拓扑变换^[21]

Figure 3. (a) Numerically simulated field distributions of α-MoO₃; (b) topological transformation of α-MoO₃ measured by s-SNOM^[21]. Reproduced with permission. Copyright 2020, Nature.

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