Papers Published

1. Kulkarni, Manish D. and Izatt, Joseph A., Spectroscopic optical coherence tomography, Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest (1996), pp. 59 - 60 .
   (last updated on 2007/04/13)

   Abstract:
   This paper describes a novel technique for depth-resolved coherent backscatter spectroscopy, which is an extension of OCT technology. The system incorporates an OCT scanner illuminated by a superluminescent diode (SLD) at 1.3-μm center wavelength. In the low-coherence interferometer, a scanning reference mirror generates the temporal cross-correlation function of light reflected from the reference mirror, and that backscattered from the sample arm target. The low-coherence interferometric signal is digitally demodulated and filtered to obtain the complete complex envelope of the interferometric signal, which is required for the spectroscopic technique. Using this system, low-coherence interferograms with accurate sampling intervals and high dynamic range (gt;98 dB) are acquired. The probe beam of the low-coherence interferometer can be laterally scanned to generate two-dimensional data sets comprising cross-sectional images of cross-correlation amplitude and phase.

   Keywords:
   Imaging techniques;Diseases;Light scattering;Diodes;Scanning;Mirrors;Interferometers;Interferometry;Mathematical models;Frequency domain analysis;Transfer functions;Fourier transforms;