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Tuning a fast linear camera used within a talbot bands spectrometer-based optical coherence tomography set-up

Marques, M.J., Bradu, Adrian, Podoleanu, Adrian G.H. (2013) Tuning a fast linear camera used within a talbot bands spectrometer-based optical coherence tomography set-up. In: Optical and Fiber Optic Sensor Systems. SPIE Proceedings. 8785. Spie-Int Soc Optical Engineering ISBN 978-0-8194-9601-0. (doi:10.1117/12.2025696) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided)

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Abstract

Spectrometer-based Optical Coherence Tomography (Sp-OCT) introduced a number of improvements in terms of imaging speed and overall sensitivity over the existing OCT methods. This variant uses a spectrometer to acquire channelled spectra resulting from white light interferometry, which are then processed to yield the depth profiles for each transverse position. A spectrometer can be constructed using a dispersive medium such as a diffraction grating, focusing optics and a linear camera, which allows for a certain degree of control over the spectrometer parameters (exposure time, wavelength range and resolution). The recent advances in line camera technology also allow for fast camera readings, effectively increasing the frame rate of OCT B-scan images acquired and minimizing motion artifacts, which is especially important when imaging moving samples. In the presented work the usage of a commercial line camera (Basler Sprint spl-140km) employed in a Talbot bands based OCT system is reported. An analysis of how the configured parameters (exposure time, pixel binning, number of pixels read) affect the spectrometer's resolution and the OCT sensitivity profile is also described. © 2013 SPIE.

Item Type: Conference or workshop item (Proceeding)
DOI/Identification number: 10.1117/12.2025696
Additional information: Unmapped bibliographic data: C7 - 8785E1 [EPrints field already has value set] LA - English [Field not mapped to EPrints] J2 - Proc SPIE Int Soc Opt Eng [Field not mapped to EPrints] AD - Applied Optics Group, University of Kent, CT2 7NH Canterbury-Kent, United Kingdom [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints] A4 - International Commission for Optics; The Optical Society; European Optical Society; Red Iberoamericana de Optica; Innova Scientific [Field not mapped to EPrints] C3 - Proceedings of SPIE - The International Society for Optical Engineering [Field not mapped to EPrints]
Uncontrolled keywords: Biomedical imaging, Fourier-domain optical coherence tomography, Line camera, Spectrometer, Talbot bands, White light interferometry, Biomedical imaging, Fourier domain Optical coherence tomography, Line cameras, Talbot bands, White-light interferometry, Cameras, Interferometry, Light, Medical imaging, Optics, Pixels, Spectrometers, Optical tomography
Subjects: Q Science > QC Physics
R Medicine > R Medicine (General) > R857.O6 Optical coherence tomography
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: M.J.M. Marques
Date Deposited: 15 Jul 2015 09:12 UTC
Last Modified: 29 May 2019 14:47 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49320 (The current URI for this page, for reference purposes)
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