Reflective Meta-Films with Anti-Damage Property via Field Distribution Manipulation

doi:10.3390/coatings11060640

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	Reflective Meta-Films with Anti-Damage Property via Field Distribution Manipulation
	Yu, Haichao 4; Tang, Feng 1; Chen, Jun 1,3; Yi, Zao 2; Ye, Xin 1; Wang, Yiqun 4
刊名	COATINGS
	2021-06
卷号	11 期号:6
关键词	metasurfaces reflective films field confinement intense-light systems
DOI	10.3390/coatings11060640
英文摘要	The reflective optical multi-films with high damage thresholds are widely used in intense-light systems. Metasurfaces, which can manipulate light peculiarly, give a new approach to achieve highly reflective films by a single-layer configuration. In this study, reflective metasurfaces, composed of silicon nanoholes, are numerically investigated to achieve high damage thresholds. These nanoholes can confine the strongest electric field into the air zone, and, subsequently, the in-air electric field does not interact directly with silicon, attenuating the optothermal effect that causes damage. Firstly, the geometrical dependencies of silicon nanoholes' reflectance and field distribution are investigated. Then, the excitation states of electric/magnetic dipoles in nanostructures are analyzed to explain the electromagnetic mechanism. Furthermore, the reflection dependences of the nanostructures on wavelength and incident angle are investigated. Finally, for a typical reflective meta-film, some optothermal simulations are conducted, in which a maximum laser density of 0.27 W/mu m(2) can be handled. The study provides an approach to improve the laser damage threshold of reflective nanofilms, which can be exploited in many intense-light applications.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000665281900001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148511]
专题	理学院
作者单位	1.China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Sichuan, Peoples R China; 2.Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Sichuan, Peoples R China 3.Lanzhou Univ Technol, Coll Sci, Lanzhou 730050, Peoples R China; 4.Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Suzhou 215125, Peoples R China;
推荐引用方式 GB/T 7714	Yu, Haichao,Tang, Feng,Chen, Jun,et al. Reflective Meta-Films with Anti-Damage Property via Field Distribution Manipulation[J]. COATINGS,2021,11(6).
APA	Yu, Haichao,Tang, Feng,Chen, Jun,Yi, Zao,Ye, Xin,&Wang, Yiqun.(2021).Reflective Meta-Films with Anti-Damage Property via Field Distribution Manipulation.COATINGS,11(6).
MLA	Yu, Haichao,et al."Reflective Meta-Films with Anti-Damage Property via Field Distribution Manipulation".COATINGS 11.6(2021).