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Opt Lett. 2005 Aug 15;30(16):2131-3.

Spectral-domain optical coherence phase microscopy for quantitative phase-contrast imaging.

Author information

  • 1Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. cmjoo@mit.edu

Abstract

We describe a novel microscopy technique for quantitative phase-contrast imaging of a transparent specimen. The technique is based on depth-resolved phase information provided by common path spectral-domain optical coherence tomography and can measure minute phase variations caused by changes in refractive index and thickness inside the specimen. We demonstrate subnanometer level path-length sensitivity and present images obtained on reflection from a known phase object and human epithelial cheek cells.

PMID:
16127933
[PubMed - indexed for MEDLINE]
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