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Open AccessArticle

Spectroscopic Optical Coherence Tomography by Using Multiple Multipole Expansion

by Hon Luen Seck *,† and Ying Zhang
Singapore Institute of Manufacturing Technology, Singapore 138634, Singapore
*
Author to whom correspondence should be addressed.
Current address: 2 Fusionopolis Way, #08-04, Innovis, Singapore 138634
Photonics 2018, 5(4), 44; https://doi.org/10.3390/photonics5040044
Received: 12 August 2018 / Revised: 19 October 2018 / Accepted: 24 October 2018 / Published: 30 October 2018
(This article belongs to the Special Issue Biomedical Photonics Advances)
This paper presents a pre-processing method to remove multiple scattering artifacts in spectroscopic optical coherence tomography (SOCT) using time–frequency analysis approaches. The method uses a multiple multipole expansion approach to model the light fields in SOCT. It is shown that the multiple scattered fields can be characterized by higher order terms of the multiple multipole expansion. Hence, the multiple scattering artifact can thus be eliminated by applying the time–frequency transform on the SOCT measurements characterized by the lower order terms. Simulation and experimental results are presented to show the effectiveness of the proposed pre-processing method. View Full-Text
Keywords: optical coherence tomography; hyperspectral imaging; multiple scattering; signal processing optical coherence tomography; hyperspectral imaging; multiple scattering; signal processing
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Seck, H.L.; Zhang, Y. Spectroscopic Optical Coherence Tomography by Using Multiple Multipole Expansion. Photonics 2018, 5, 44.

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