Remote-Raman spectroscopy of optically trapped particles by utilizing a hollow optical fiber

T. Katagiri, Y. Morisaki, Y. Matsuura

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A fiber-optic probe based on a hollow optical fiber was developed for highly-sensitive remote-Raman measurements of particles in solution. A lens mounted at the distal end of the fiber was optimally designed to suppress the spherical aberration and maximize the numerical aperture by the ray-optics method, and fabricated by polishing a SrTiO3 ball of 1 mm diameter. Polystyrene particles of 60 μm diameter dispersed in NaCl aqueous solution were three-dimensionally trapped by the prototype probe. The Raman spectrum of the polystyrene particle was clearly observed when the particle was optically trapped at the beam focus.

Original languageEnglish
Title of host publicationOptical Trapping and Optical Micromanipulation VII
DOIs
Publication statusPublished - 2010
EventOptical Trapping and Optical Micromanipulation VII - San Diego, CA, United States
Duration: 2010 Aug 12010 Aug 5

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7762
ISSN (Print)0277-786X

Conference

ConferenceOptical Trapping and Optical Micromanipulation VII
Country/TerritoryUnited States
CitySan Diego, CA
Period10/8/110/8/5

Keywords

  • Hollow optical fiber
  • Optical trapping
  • Raman spectroscopy

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