Phase-dispersion optical tomography

Published

Journal Article

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°) phase technique can complement optical coherence tomography, which measures electric field amplitude, by revealing otherwise undetectable dispersive variations in the sample. © 2001 Optical Society of America.

Full Text

Duke Authors

Cited Authors

  • Yang, C; Wax, A; Dasari, RR; Feld, MS

Published Date

  • May 15, 2001

Published In

Volume / Issue

  • 26 / 10

Start / End Page

  • 686 - 688

International Standard Serial Number (ISSN)

  • 0146-9592

Digital Object Identifier (DOI)

  • 10.1364/OL.26.000686

Citation Source

  • Scopus