基于人工微结构的大面积高效率近红外吸收器  

Large-area high-performance near-infrared absorber based on plasmonic nanostructures

作　　者：陆加良 俞伟伟[2,3] 张晓东 许昊 郝加明[2] 孙艳[2] 陈鑫[2] 孟祥建[2] 戴宁[2] 禇君浩[2] LU Jia-Liang;YU Wei-Wei;ZHANG Xiao-Dong;XU Hao;HAO Jia-Ming;SUN Yan;CHEN Xin;MENG Xiang-Jian;DAI Ning;CHU Jun-Hao(College of Science,Donghua University,Shanghai201620,China;State Key Laboratory of Infrared Physics,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai200083,China;University of Chinese Academy of Sciences,Beijing100049,China)

机构地区：[1]东华大学理学院,上海201620 [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 [3]中国科学院大学,北京100049

出　　处：《红外与毫米波学报》2018年第6期740-745,共6页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金(61471345);上海市"科技创新行动计划"(14PJ1409500)~~

摘　　要：基于人工微结构超材料的先进理念,设计制备工作波长可调的近红外大面积吸收器.器件制备采用纳米微球化学自组装方法制备顶层金属微结构,该方法可制备大面积样品.实验结果显示,吸收器在近红外波段峰值吸收率超过99%,吸收波长可以通过结构单元几何尺寸调节.理论模拟结果不但与实验测量的数据相一致,而且很好地阐述了器件高效光吸收的物理机理.A large-area high-performance near-infrared absorber based on plasmonic nanostructures is introduced,fabricated and experimentally characterized.The periodic plasmonic nanostructures are prepared by self-assembled template,a charming low-cost technology for making large-area samples.Experimental results show that the absorbance can be as high as 99%.The spectral position of the absorption peak is experimentally demonstrated to be tuned by the geometric dimensions.The physical origin of the absorption effect is theoretically explained as well.

关 键 词：吸收器 微结构 大面积 高效 近红外 

分 类 号：TN214[电子电信—物理电子学]