Dark-field illuminated reflectance fiber bundle endoscopic microscope

Xuan Liu, Yong Huang, Jin U. Kang

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


We propose a reflectance fiber bundle microscope using a dark-field illumination configuration for applications in endoscopic medical imaging and diagnostics. Our experiment results show that dark-field illumination can effectively suppress strong specular reflection from the proximal end of the fiber bundle. We realized a lateral resolution of 4.4 m using the dark-field illuminated fiber bundle configuration. To demonstrate the feasibility of using the system to study cell morphology, we obtained still and video images of two thyroid cancer cell lines. Our results clearly allow differentiation of different cancer cell types.

Original languageEnglish (US)
Article number046003
JournalJournal of Biomedical Optics
Issue number4
StatePublished - Apr 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering


  • dark-field
  • fiber bundle
  • optical microscopy
  • reflectance fiber endoscope


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