Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Phys Med Biol. 2004 Apr 7;49(7):1257-63.

Transversal phase resolved polarization sensitive optical coherence tomography.

Author information

  • 1Department of Medical Physics, University of Vienna, Waehringerstr 13, A-1090 Vienna, Austria. michael.pircher@univie.ac.at

Abstract

We present a novel optical coherence tomography (OCT) method to measure backscattered intensity and birefringence properties (retardation and fast axis orientation) and apply it to imaging of human ocular tissue. The method is based on a Mach Zehnder interferometer, on transversal scanning, and on a polarization sensitive two-channel detection. A highly stable carrier frequency is generated by acousto-optic modulators (AOMs). This allows a phase sensitive demodulation by the lock-in technique. Since the recording of individual interference fringes is avoided by this method the amount of data to be recorded and processed is considerably reduced. We demonstrate this method on human cornea and anterior chamber angle and present, to the best of our knowledge, the first OCT images of retardation and fast axis orientation of the anterior chamber angle region in vivo.

PMID:
15128203
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for IOP Publishing Ltd.
    Loading ...
    Write to the Help Desk