Refractive index tomography of turbid media by bifocal optical coherence refractometry

Zvyagin, Andrei, Silva, K. K.M. B. Dilusha, Alexandrov, Sergey A., Hillman, Timothy R., Armstrong, Julian J., Tsuzuki, Takuya and Sampson, David D. (2003) Refractive index tomography of turbid media by bifocal optical coherence refractometry. Optics Express, 11 25: 3503-3517.

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Author Zvyagin, Andrei
Silva, K. K.M. B. Dilusha
Alexandrov, Sergey A.
Hillman, Timothy R.
Armstrong, Julian J.
Tsuzuki, Takuya
Sampson, David D.
Title Refractive index tomography of turbid media by bifocal optical coherence refractometry
Journal name Optics Express   Check publisher's open access policy
ISSN 1094-4087
Publication date 2003-12-15
Sub-type Article (original research)
Open Access Status File (Publisher version)
Volume 11
Issue 25
Start page 3503
End page 3517
Total pages 15
Editor Joseph Eberly
Place of publication Washington
Publisher Optical Society of America
Collection year 2003
Language eng
Subject 240402 Quantum Optics and Lasers
Abstract We demonstrate tomographic imaging of the refractive index of turbid media using bifocal optical coherence refractometry (BOCR). The technique, which is a variant of optical coherence tomography, is based on the measurement of the optical pathlength difference between two foci simultaneously present in a medium of interest. We describe a new method to axially shift the bifocal optical pathlength that avoids the need to physically relocate the objective lens or the sample during an axial scan, and present an experimental realization based on an adaptive liquid-crystal lens. We present experimental results, including video clips, which demonstrate refractive index tomography of a range of turbid liquid phantoms, as well as of human skin in vivo.
Keyword laser science
imaging systems
optical coherence tomography
instrumentation, measurement and metrology
medical optics and biotechnology
turbid media
optical diagnostics
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2004 Higher Education Research Data Collection
School of Physical Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 40 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 05 Apr 2007, 16:25:35 EST by Kaye Eldridge on behalf of School of Mathematics & Physics