Optical Trapping of Sub−Micrometer Particles with Fiber Tapers Fabricated by Fiber Pulling Assisted Chemical Etching

Optical trapping of sub−micrometer particles in three dimensions has been attracting increasing attention in a wide variety of fields such as physics, chemistry, and biologics. Optical fibers that allow stable trapping of such particles are not readily available but beneficial in system integration...

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Main Authors: Chaoyang Ti, Yao Shen, Yiming Lei, Yuxiang Liu
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/8/9/367
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author Chaoyang Ti
Yao Shen
Yiming Lei
Yuxiang Liu
author_facet Chaoyang Ti
Yao Shen
Yiming Lei
Yuxiang Liu
author_sort Chaoyang Ti
collection DOAJ
description Optical trapping of sub−micrometer particles in three dimensions has been attracting increasing attention in a wide variety of fields such as physics, chemistry, and biologics. Optical fibers that allow stable trapping of such particles are not readily available but beneficial in system integration and miniaturization. Here, we present a readily accessible batch fabrication method, namely fiber pulling assisted tubeless chemical etching, to obtain sharp tapered optical fibers from regular telecommunication single−mode fibers. We demonstrated the applications of such fiber tapers in two non−plasmonic optical trapping systems, namely single− and dual−fiber−taper−based trapping systems. We realized single particle trapping, multiple particle trapping, optical binding, and optical guiding with sub−micrometer silica particles. Particularly, using the dual fiber system, we observed the three−dimensional optical trapping of swarm sub−micrometer particles, which is more challenging to realize than trapping a single particle. Because of the capability of sub−micrometer particle trapping and the accessible batch fabrication method, the fiber taper−based trapping systems are highly potential tools that can find many applications in biology and physics.
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spelling doaj.art-a6c69dea4dd544c1a44a193167c878812023-11-22T14:50:22ZengMDPI AGPhotonics2304-67322021-08-018936710.3390/photonics8090367Optical Trapping of Sub−Micrometer Particles with Fiber Tapers Fabricated by Fiber Pulling Assisted Chemical EtchingChaoyang Ti0Yao Shen1Yiming Lei2Yuxiang Liu3Department of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USADepartment of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USADepartment of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USADepartment of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USAOptical trapping of sub−micrometer particles in three dimensions has been attracting increasing attention in a wide variety of fields such as physics, chemistry, and biologics. Optical fibers that allow stable trapping of such particles are not readily available but beneficial in system integration and miniaturization. Here, we present a readily accessible batch fabrication method, namely fiber pulling assisted tubeless chemical etching, to obtain sharp tapered optical fibers from regular telecommunication single−mode fibers. We demonstrated the applications of such fiber tapers in two non−plasmonic optical trapping systems, namely single− and dual−fiber−taper−based trapping systems. We realized single particle trapping, multiple particle trapping, optical binding, and optical guiding with sub−micrometer silica particles. Particularly, using the dual fiber system, we observed the three−dimensional optical trapping of swarm sub−micrometer particles, which is more challenging to realize than trapping a single particle. Because of the capability of sub−micrometer particle trapping and the accessible batch fabrication method, the fiber taper−based trapping systems are highly potential tools that can find many applications in biology and physics.https://www.mdpi.com/2304-6732/8/9/367submicron particle trappingfiber taperschemical etching
spellingShingle Chaoyang Ti
Yao Shen
Yiming Lei
Yuxiang Liu
Optical Trapping of Sub−Micrometer Particles with Fiber Tapers Fabricated by Fiber Pulling Assisted Chemical Etching
Photonics
submicron particle trapping
fiber tapers
chemical etching
title Optical Trapping of Sub−Micrometer Particles with Fiber Tapers Fabricated by Fiber Pulling Assisted Chemical Etching
title_full Optical Trapping of Sub−Micrometer Particles with Fiber Tapers Fabricated by Fiber Pulling Assisted Chemical Etching
title_fullStr Optical Trapping of Sub−Micrometer Particles with Fiber Tapers Fabricated by Fiber Pulling Assisted Chemical Etching
title_full_unstemmed Optical Trapping of Sub−Micrometer Particles with Fiber Tapers Fabricated by Fiber Pulling Assisted Chemical Etching
title_short Optical Trapping of Sub−Micrometer Particles with Fiber Tapers Fabricated by Fiber Pulling Assisted Chemical Etching
title_sort optical trapping of sub micrometer particles with fiber tapers fabricated by fiber pulling assisted chemical etching
topic submicron particle trapping
fiber tapers
chemical etching
url https://www.mdpi.com/2304-6732/8/9/367
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AT yaoshen opticaltrappingofsubmicrometerparticleswithfibertapersfabricatedbyfiberpullingassistedchemicaletching
AT yiminglei opticaltrappingofsubmicrometerparticleswithfibertapersfabricatedbyfiberpullingassistedchemicaletching
AT yuxiangliu opticaltrappingofsubmicrometerparticleswithfibertapersfabricatedbyfiberpullingassistedchemicaletching