Accurate phase estimation of vibrating interfaces using spectral estimation optical coherence tomography

Jos de Wit, George Othon Glentis, Jeroen Kalkman*

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

Phase sensitive optical coherence tomography (OCT) is able to measure small axial motion at the level of ten nanometer. However, when interfaces are located close to each other, the phase of one interface may influence the phase of the other interface. This spectral leakage hampers the ability to see relative motion between structures within the sample, especially when the separation is below the axial resolution. Spectral estimation OCT (SE-OCT) based on IAA can not only improve the axial resolution beyond the conventional bandwidth limitation, but also reduce this spectral leakage. Here we show accurate reconstruction of the vibration of an interface at sub-resolution distance from a high-intensity interface with a different vibration frequency. Phase preserved IAA successfully reduces spectral leakage and outperforms conventional DFT-based reconstruction methods.

Original languageEnglish
Title of host publicationOptical Coherence Imaging Techniques and Imaging in Scattering Media V
EditorsBenjamin J. Vakoc, Maciej Wojtkowski, Yoshiaki Yasuno
PublisherSPIE
Number of pages3
ISBN (Electronic)978-1-5106-6473-9
DOIs
Publication statusPublished - 2023
EventOptical Coherence Imaging Techniques and Imaging in Scattering Media V 2023 - Munich, Germany
Duration: 25 Jun 202329 Jun 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12632
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Coherence Imaging Techniques and Imaging in Scattering Media V 2023
Country/TerritoryGermany
CityMunich
Period25/06/2329/06/23

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