真空悬浮光镊实验装置开发及教学应用  

Development and Teaching Application of Vacuum Levitated Optical Tweezers Experimental Device

作　　者：吕玮阁[1] 李楠[1] 章逸舟 杨建华[1] 沈瑜 胡慧珠[1] LüWeige;LI Nan;ZHANG Yizhou;YANG Jianhua;SHEN Yu;HU Huizhu(College of Optical Science and Engineering,Zhejiang University,Hangzhou 310027,China;Zhejiang Lab,Hangzhou 311100,China;School of Science,Zhejiang University of Science and Technology,Hangzhou 310023,China)

机构地区：[1]浙江大学光电科学与工程学院,杭州310027 [2]之江实验室,杭州311100 [3]浙江科技学院理学院,杭州310023

出　　处：《实验室研究与探索》2023年第11期76-81,共6页Research and Exploration In Laboratory

基　　金：浙江省高等教育“十三五”第二批教学改革研究项目(jg20190042);之江实验室科学研究项目(2019MB0AD01)。

摘　　要：为了满足现代光学和基础物理学等利用光镊技术对微纳粒子进行精密观测的实验需求,设计并开发了一套真空悬浮光镊实验装置。该实验装置由捕获系统、探测系统、真空系统和测试软件组成,光阱激光耦合效率可达90%,可捕获的微球半径为50~100nm,可测量的共振频率范围为120~300kHz。实验结果与理论分析一致。该实验装置是纳米微粒精密测量和真空光镊技术研究的理想实验平台,可用于本科生及研究生的实验教学和探索。To satisfy the experimental requirements of precision observation of micro/nano particles using optical tweezers technology in modern optics and basic physics,an experimental device based on optical tweezers in vacuum is designed and developed.The device consists of a capture system,a detection system,a vacuum system,and testing software.The laser coupling efficiency of its optical trap can reach 90%,the radius of the captured microspheres is 50~100 nm,and the measurable resonance frequency range is 120~300 kHz.The experimental results are consistent with theoretical analysis.This experimental device is an ideal experimental platform for both precise measurement of nanoparticles and research on vacuum optical tweezers technology,which can be used for experimental teaching and exploration for undergraduate and graduate students.

关 键 词：真空光镊 光力学 纳米微粒 精密测量 

分 类 号：O436[机械工程—光学工程]