Phase-dispersion optical tomography
- 15 May 2001
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 26 (10), 686-688
- https://doi.org/10.1364/ol.26.000686
Abstract
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 phase technique can complement optical coherence tomography, which measures electric field amplitude, by revealing otherwise undetectable dispersive variations in the sample.
Keywords
This publication has 8 references indexed in Scilit:
- Measurement of the anomalous phase velocity of ballistic light in a random medium by use of a novel interferometerOptics Letters, 2001
- Interferometric phase-dispersion microscopyOptics Letters, 2000
- Phase-resolved optical coherence tomography and optical Doppler tomography for imaging blood flow in human skin with fast scanning speed and high velocity sensitivityOptics Letters, 2000
- Differential phase contrast in optical coherence tomography.Optics Letters, 1999
- Digital holography for quantitative phase-contrast imagingOptics Letters, 1999
- Two-dimensional birefringence imaging in biological tissue by polarization-sensitive optical coherence tomographyOptics Letters, 1997
- Material characterization using a frequency-doubling two-color interferometerReview of Scientific Instruments, 1994
- MICRON~RESOLUTION BIOMEDICAL IMAGING WITH OPTICAL COHERENCE TOMOGRAPHYOptics and Photonics News, 1993