Phase-dispersion optical tomography.

نویسندگان

  • C Yang
  • A Wax
  • R R Dasari
  • M S Feld
چکیده

We report on phase-dispersion optical tomography, a new imaging technique based on phase measurements using low-coherence interferometry. The technique simultaneously probes the target with fundamental and second-harmonic light and interferometrically measures the relative phase shift of the backscattered light fields. This phase change can arise either from reflection at an interface within a sample or from bulk refraction. We show that this highly sensitive (~5 degrees ) phase technique can complement optical coherence tomography, which measures electric field amplitude, by revealing otherwise undetectable dispersive variations in the sample.

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عنوان ژورنال:
  • Optics letters

دوره 26 10  شماره 

صفحات  -

تاریخ انتشار 2001