Freestanding metal nanohole array for high-performance applications  

作　　者：Bobo Du Yinlan Ruan Dexing Yang Peipei Jia Shoufei Gao Yingying Wang Pu Wang Heike Ebendorff-Heidepriem 

机构地区：[1]MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions,and Shaanxi Key Laboratory of Optical lnformationTechnology,School of Physical Science and Technology,Northwestern Polytechnical University,Xi'an 710072,China [2]Institute for Photonics and Advanced Sensing,University of Adelaide,Adelaide,SA 5005,Australia [3]ARC Centre of Excellence for Nanoscale BioPhotonics,University of Adelaide,Adelaide,SA 5005,Australia [4]Institute of Photonics Technology,Jinan University,Guangzhou 510632,China [5]Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,China

出　　处：《Photonics Research》2020年第11期1749-1756,共8页光子学研究（英文版）

基　　金：Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University(CX201818);China Scholarship Council(201706290163);ARC Centre of Excellence for Nanoscale Biophotonics(CE14010003);State Key Laboratory of Advanced Optical Communication Systems and Networks,China.

摘　　要：Plasmonic devices using periodic metallic nanostructures have recently gained tremendous interest for color filters,sensing,surface enhanced spectroscopy,and enhanced photoluminescence,etc.However,the performance of such plasmonic devices is severely hampered by the solid substrates supporting the metallic nanostructures.Here,a strategy for freestanding metallic nanomembranes is introduced by taking advantages of hollow substrate structures.Large-area and highly uniform gold nanomembranes with nanohole array are fabricated via a flexible and simple replication-releasing method.The hollow structures include a hollow core fiber with 30μm core diameter and two ferrules with their hole diameter as 125 and 500μm,respectively.As a proof-of-concept demonstration,2 times higher sensitivity of the bulk refractive index is obtained with this platform compared to that of a counterpart on a solid silica substrate.Such a portable and compact configuration provides unique opportunities to explore the intrinsic properties of the metal nanomembranes and paves a new way to fabricate high-performance plasmonic devices for biomolecule sensing and color filter.

关 键 词：performance METALLIC high 

分 类 号：TB383.1[一般工业技术—材料科学与工程] O539[理学—等离子体物理]