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

Petersen, Christian R. and Israelsen, Niels M. and Barh, Ajanta and Jain, Deepak and Jensen, Mikkel and Hannesschläger, Günther and Tidemand-Lichtenberg, Peter and Pedersen, Christian and Podoleanu, Adrian G.H. and Bang, Ole and Alfano, Robert R. and Demos, Stavros G. and Seddon, Angela B. (2019) Mid-infrared OCT imaging in highly scattering samples using real-time upconversion of broadband supercontinuum covering from 3.6-4.6 μm. In: Alfano, Robert R. and Demos, Stavros G. and Seddon, Angela B., eds. Optical Biopsy XVII: Toward Real-Time Spectroscopic Imaging and Diagnosis. Proceedings of SPIE, 20 (23). SPIE. ISBN 978-1-5106-2388-0. E-ISBN 978-1-5106-2389-7. (doi:10.1117/12.2519444)

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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.

Item Type: Book section
DOI/Identification number: 10.1117/12.2519444
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Adrian Podoleanu
Date Deposited: 04 Jun 2019 11:59 UTC
Last Modified: 23 Jul 2019 14:59 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/74244 (The current URI for this page, for reference purposes)
Podoleanu, Adrian G.H.: https://orcid.org/0000-0002-4899-9656
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