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Integrated fiber optic probe for dynamic light scattering

  • Stony Brook University

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

An integrated fiber optic probe, comprising a monomode optical fiber fusion spliced to a short length of a graded-index multimode fiber, is fabricated for use as a coherent receiver in dynamic light scattering. The multimode fiber is cleaved to provide a gradient-index fiber lens with a focal length of 125 [Lm and an f-number close to unity. An integrated fiber receiver is used to measure the intensity-intensity autocorrelation data from a 0.05% by weight concentration of an aqueous suspension of polystyrene latex spheres. Analysis of 100 independent data sets indicates that the particle size can be recovered with an accuracy of + 1%.

Original languageEnglish
Pages (from-to)3901-3904
Number of pages4
JournalApplied Optics
Volume32
Issue number21
DOIs
StatePublished - Jul 1993

Keywords

  • Graded-index fiber lens
  • Light scattering
  • Particle sizing
  • Photon correlation spectroscopy

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