铝基平面超构材料可见-近红外光超吸收研究  

Visible-near infrared light superabsorption of aluminum-based planar metamaterial

作　　者：卢玥 许昊[2] 李晓温 彭芳 孙艳[2] 王丁[1] 郝加明[2] LU Yue;XU Hao;LI Xiao-Wen;PENG Fang;SUN Yan;WANG Ding;HAO Jiao-Ming(School of Materials Science and Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;State Key Laboratory of Infrared Physics,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China)

机构地区：[1]上海理工大学材料科学与工程学院,上海200093 [2]中国科学院上海技术物理研究所红外物理国家重点实验室,上海200083

出　　处：《红外与毫米波学报》2021年第3期314-320,共7页Journal of Infrared and Millimeter Waves

基　　金：国家重点研发计划(2016YFA0202200);上海市经济和信息化委员会项目(GYQJ20190123)。

摘　　要：增强可见-近红外光吸收在光电信号转换、探测、通信及传感等众多领域具有重要应用潜力。本文基于吉尔-图诺伊斯谐振腔(Gires-Tournois resonator)共振吸收原理,利用Al/Al_(2)O_(3)/Al三层膜结构制备了可见到近红外波段全铝基平面薄膜堆栈型超构吸收器。通过合适的参数优化选取,实现了吸收峰位连续可调。吸收峰值接近100%,变角度反射光谱显示器件对入射角度不敏感,理论数值模拟计算结果与实验结果相互吻合。完美吸收峰在500 nm附近的吸收器在532 nm激光照射下快速升温,最高温度可达55.4℃,表明该结构在光热转化领域的潜在应用。The enhanced visible-near infrared light absorber has important application potentials in many fields such as photoelectric signal conversion,detection,communication,and sensing.In this paper,based on the principle of GiresTournois resonator resonance absorption,an all-aluminum-based planar thin-film stacked metamaterial light wave absorber is proposed.The device is composed of a sub-wavelength Al/Al_(2)O_(3)/Al three-layer film structure.Through optimal selection of appropriate parameters,the absorption peak position is continuously adjustable from visible to near infrared,the absorption peak is close to 100%,and the variable angle reflection spectra show that the device is not sensitive to the incident angle.The theoretical calculation results are in perfect agreement with the experimental results.The absorber with a perfect absorption wavelength near 500 nm heats up rapidly under 532 nm laser irradiation,and the maximum temperature can reach 55.4℃,indicating potential applications in the field of photothermal conversion.

关 键 词：吉尔-图诺伊斯谐振腔 近完美吸收 光热转化 

分 类 号：TN214[电子电信—物理电子学]