Infrared and Laser Engineering, Volume. 49, Issue 9, 20201029(2020)
Exceptional points in metasurface
Exceptional points are special points in non-Hermitian systems, and there are many novel physical phenomena in the parameter space near the exceptional points. In recent years, metasurface has been a popular topic in physics. A large number of devices with superior performance have been designed based on metasurface platform. The appearance of the metasurface provides an easy platform for the study of exceptional points. By precisely controlling the structural parameters of the metasurface, it is convenient to study the parameter space of the exceptional points. The research on exceptional points in non-Hermitian metasurface also provides a foundation platform for studying new laws of physics. Firstly, the basic theory of exceptional points and the exceptional point in metasurface was introduced. Secondly, the recent research on the exceptional points in metasurface was introduced. Finally, the current problems needing to be solved were analyzed and the development of the field in the future was prospected.
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Huixin Qi, Xiaoxiao Wang, Xiaoyong Hu, Qihuang Gong. Exceptional points in metasurface[J]. Infrared and Laser Engineering, 2020, 49(9): 20201029
Category: Special issue-Metasurface empowered manipulation of wavefront
Received: Jun. 2, 2020
Accepted: --
Published Online: Jan. 4, 2021
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