基于Bi_(1.5)Sb_(0.5)Te_(1.8)Se_(1.2)材料的光栅型紫外线吸收器  

Grating-Type Ultraviolet Absorber Based on Bi_(1.5)Sb_(0.5)Te_(1.8)Se_(1.2) Materials

作　　者：张敬 薛文瑞[1] 张晨 陈宇婷 李昌勇[2,3] Zhang Jing;Xue Wenrui;Zhang Chen;Chen Yuting;Li Changyong(College of Physics and Electronic Engineering,Shanxi University,Taiyuan,Shanxi 030006,China;Key Laboratory of Quantum Optics and Photonic Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan,Shanxi 030006,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan,Shanxi 030006,China)

机构地区：[1]山西大学物理电子工程学院,山西太原030006 [2]山西大学激光光谱研究所量子光学与光量子器件国家重点实验室,山西太原030006 [3]山西大学极端光学协同创新中心,山西太原030006

出　　处：《激光与光电子学进展》2022年第5期280-287,共8页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61378039,61575115);国家基础科学人才培养基金(J1103210)。

摘　　要：基于Bi_(1.5)Sb_(0.5)Te_(1.8)Se_(1.2)材料,设计了一种光栅型紫外线吸收器。采用有限元方法,对该吸收器的吸收特性与结构参数、入射角度及工作波长的依赖关系进行了详细的分析。该吸收器的吸收机制是磁激元共振效应。通过调节结构参数、入射角度及工作波长,可以调节该吸收器的吸收特性。采用优化参数条件下,在200~400 nm的波段范围内,在0~75°的入射角度范围内,吸收率可以达到80%以上。该工作为紫外线吸收器的设计、制作和在紫外检测与防护、生物传感和紫外光催化等领域的应用提供了理论基础。Based on Bi_(1.5)Sb_(0.5)Te_(1.8)Se_(1.2) material,a grating-type ultraviolet absorber was designed.Using the finite element method,the dependence of the absorption characteristics of the absorber on structural parameters,incident angle and working wavelength was analyzed in detail.The absorption mechanism of the absorber is the magnetic polariton resonance effect.By adjusting the structural parameters,incident angle and working wavelength,the absorption characteristics of the absorber can be adjusted.With optimized parameters,the absorption rate can reach more than 80%in the wavelength range of 200~400 nm and the incident angle range of 0~75°.The work in this paper provides a theoretical basis for the design and manufacture of ultraviolet absorbers and their applications in ultraviolet detection and protection,biosensing,and ultraviolet photocatalysis.

关 键 词：吸收器 光栅 紫外光 Bi_(1.5)Sb_(0.5)Te_(1.8)Se_(1.2) 磁激元 

分 类 号：O431[机械工程—光学工程]