Imaging beyond the ballistic limit in coherence imaging using multiply scattered light

Opt Express. 2011 Feb 28;19(5):4268-79. doi: 10.1364/OE.19.004268.

Abstract

We present an imaging system based on low coherence interferometric detection of multiply scattered light for extended depth imaging into highly scattering media. By incorporating angle-resolved detection, coherence imaging with multiply scattered photons is shown to be both feasible and potentially superior to existing techniques for performing time-resolved measurements of scattered light. Imaging is demonstrated through nearly 100 mean free paths of scattering phantom in a single-ended geometry. The resolution and imaging contrast are compared to those obtained with conventional OCT systems which chiefly detect singly scattered light.

Publication types

  • Comparative Study
  • Evaluation Study
  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Equipment Design
  • Equipment Failure Analysis
  • Image Enhancement / instrumentation*
  • Interferometry / instrumentation*
  • Light
  • Nephelometry and Turbidimetry / instrumentation*
  • Scattering, Radiation
  • Tomography, Optical Coherence / instrumentation*