Mid-infrared OCT imaging in highly scattering samples using real-time upconversion of broadband supercontinuum covering from 3.6-4.6 μm

Christian Rosenberg Petersen*, Niels Møller Israelsen, Ajanta Barh, Deepak Jain, Mikkel Jensen, Günther Hannesschläger, Peter Tidemand-Lichtenberg, Christian Pedersen, Adrian Podoleanu, Ole Bang

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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    Abstract

    We present a mid-infrared spectral-domain optical coherence tomography system operating at 4.1 μm central wavelength with a high axial resolution of 8.6 μm enabled by more than 1 μm bandwidth from 3.58-4.63 μm produced by a mid-infrared supercontinuum laser. The system produces 2D cross-sectional images in real-time enabled the high-brightness of the supercontinuum source in combination with broadband upconversion of the signal to the range 820-865 nm, where a standard 800 nm array spectrometer can be used for fast detection. We discuss the potential applications within nondestructive testing in highly scattering materials and within biomedical imaging for achieving the in-vivo optical biopsy.
    Original languageEnglish
    Title of host publicationProceedings of SPIE
    Number of pages6
    Volume10873
    PublisherSPIE - International Society for Optical Engineering
    Publication date2019
    ISBN (Print)9781510623880
    DOIs
    Publication statusPublished - 2019
    EventSPIE Photonics West BiOS: Adaptive Optics and Wavefront Control for Biological Systems VI - The Moscone Center, San Francisco, United States
    Duration: 1 Feb 20206 Feb 2020
    https://spie.org/conferences-and-exhibitions/photonics-west/bios

    Conference

    ConferenceSPIE Photonics West BiOS
    LocationThe Moscone Center
    Country/TerritoryUnited States
    CitySan Francisco
    Period01/02/202006/02/2020
    Internet address
    SeriesProceedings of SPIE - The International Society for Optical Engineering
    ISSN0277-786X

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