Theory of Fourier phase within the framework of Fourier-domain optical coherence tomography

Shikhar Uttam, Yang Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Fourier phase in Fourier-domain optical coherence tomography (FD-OCT) has been shown to estimate the sub-resolution change in the optical depth location of a strong interface in refractive index profile of a sample using spectral-domain phase microscopy (SDPM), a derivative of FD-OCT. From first principles we show that in general Fourier phase not only estimates this sub-resolution change but also the mean spatial frequency of the coherence-gated refractive index, and both SDPM and depth-resolved spatial-domain low-coherence quantitative phase microscopy (dr-SLQPM) are special cases of this general theory. We also show that for spectral source with infinite bandwidth Fourier phase is zero. We provide analytical expressions and numerical simulations to support our results.

Original languageEnglish (US)
Title of host publicationOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX
EditorsValery V. Tuchin, Joseph A. Izatt, James G. Fujimoto
PublisherSPIE
ISBN (Electronic)9781628419313
DOIs
StatePublished - 2016
Externally publishedYes
EventOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX - San Francisco, United States
Duration: Feb 15 2016Feb 17 2016

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume9697
ISSN (Print)1605-7422

Conference

ConferenceOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX
Country/TerritoryUnited States
CitySan Francisco
Period2/15/162/17/16

Keywords

  • Fourier optics
  • Fourier-domain OCT
  • low-coherence interferometry
  • signal processing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

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