Ultra-High Resolution Optical Coherence Tomography (OCT) Using a Halogen Lamp as the Light Source


The axial resolution of optical coherence tomography (OCT) is determined by the coherence length of the light source. We demonstrate for the first time high-resolution OCT of biological tissue using a halogen lamp as the light source for a low coherence interferometer. High-resolution OCT imaging with 3.5 μm resolution was performed successfully for onion and porcine skin, although the coherence light power for illumination of a sample is as small as 100 nW.

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Correspondence to Masato Ohmi.

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Ohmi, M., Haruna, M. Ultra-High Resolution Optical Coherence Tomography (OCT) Using a Halogen Lamp as the Light Source. OPT REV 10, 478–481 (2003). https://doi.org/10.1007/s10043-003-0478-9

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Key words

  • optical coherence tomography
  • high-resolution OCT
  • halogen lamp
  • bulk-optic interferometer
  • fiber-optic interferometer