Measurement of gas diffusion coefficient using photonic crystal fiber

Y. L. Hoo, Wei Jin, H. L. Ho, D. N. Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

51 Citations (Scopus)


We report the use of photonic crystal fiber (PCF) for the measurement of gas diffusion constant. PCF has uniform air-hole columns along the fiber length that provide the basis for the study of gas diffusion based on the capillary method. The gas concentration within the airhole columns is monitored by measuring the attenuation of light through the PCF caused by the evanescent wave absorption of light by the gas sample.
Original languageEnglish
Pages (from-to)1434-1436
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number10
Publication statusPublished - 1 Oct 2003


  • Capillary tube
  • Diffusion coefficient
  • Diffusion processes
  • Loss measurement
  • Photonic crystal fiber (PCF)

ASJC Scopus subject areas

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


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