Single-particle trapping and dynamic manipulation with holographic optical surface-wave tweezers  

作　　者：XI XIE XIANYOU WANG CHANGJUN MIN HAIXIANG MA YUNQI YUAN ZHANGYU ZHOU YUQUAN ZHANG JING BU XIAOCONG YUAN 

机构地区：[1]Nanophotonics Research Center,Shenzhen Key Laboratory of Micro-Scale Optical Information Technology,Shenzhen University,Shenzhen 518060,China

出　　处：《Photonics Research》2022年第1期166-173,共8页光子学研究（英文版）

基　　金：Guangdong Major Project of Basic and Applied Basic Research(2020B0301030009);National Natural Science Foundation of China(91750205,61935013,62175157,61975128,61975129);Leading Talents of Guangdong Province Program(00201505);Natural Science Foundation of Guangdong Province(2016A030312010,2019TQ05X750);Shenzhen Peacock Plan(KQTD20170330110444030);Science and Technology Innovation Commission of Shenzhen(JCYJ20180305125418079,JCYJ20180507182035270,JCYJ20210324120403011,ZDSYS201703031605029)。

摘　　要：Optical surface waves have widely been used in optical tweezers systems for trapping particles sized from the nanoto microscale,with specific importance and needs in applications of super-resolved detection and imaging if a single particle can be trapped and manipulated accurately.However,it is difficult to achieve such trapping with high precision in conventional optical surface-wave tweezers.Here,we propose and experimentally demonstrate a new method to accurately trap and dynamically manipulate a single particle or a desired number of particles in holographic optical surface-wave tweezers.By tailoring the optical potential wells formed by surface waves,we achieved trapping of the targeted single particle while pushing away all surrounding particles and further dynamically controlling the particle by a holographic tweezers beam.We also prove that different particle samples,including gold particles and biological cells,can be applied in our system.This method can be used for different-type optical surface-wave tweezers,with significant potential applications in single-particle spectroscopy,particle sorting,nano-assembly,and others.

关 键 词：TRAPPING particle surface 

分 类 号：O438.1[机械工程—光学工程]