Sequential trapping of single nanoparticles using a gold plasmonic nanohole array  

作　　者：XUE HAN VIET GIANG TRUONG PRINCE SUNIL THOMAS SILE NIC CHORMAIC 

机构地区：[1]Light-Matter Interactions Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan [2]Universite Grenoble Alpes, CNRS, Grenoble INP, Institut Neel, 38000 Grenoble, France [3]Advanced Optical Imaging Group, School of Physics, University College Dubfin, Ireland

出　　处：《Photonics Research》2018年第10期981-986,共6页光子学研究（英文版）

基　　金：Okinawa Institute of Science and Technology Graduate University

摘　　要：We have used a gold nanohole array to trap single polystyrene nanoparticles, with a mean diameter of 30 nm, into separated hot spots located at connecting nanoslot regions. A high trap stiffness of approximately 0.85 fN∕(nm·m W)at a low-incident laser intensity of ～0.51 m W∕μm^2 at 980 nm was obtained. The experimental results were compared to the simulated trapping force, and a reasonable match was achieved. This plasmonic array is useful for lab-on-a-chip applications and has particular appeal for trapping multiple nanoparticles with predefined separations or arranged in patterns in order to study interactions between them.We have used a gold nanohole array m trap single polystyrene nanopartides, with a mean diameter of 30 nm, into separated hot spots located at connecting nanoslot regions. A high trap stiffness of approximately 0.85 fN/（nm · mW） at a low-incident laser intensity of -0.51 mW/μm2 at 980 nm was obtained. The experimental results were compared m the simulated trapping force, and a reasonable match was achieved. This plasmonic array is useful for lab-on-a-chip applications and has particular appeal for trapping multiple nanopartides with predefined separations or arranged in patterns in order to study interactions between them.

关 键 词：金纳米孔 聚苯乙烯纳米粒子 通讯技术 发展现状 

分 类 号：TN92[电子电信—通信与信息系统]