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From controlling the shape of Talbot bands' visibility to improving the sensitivity decay with depth in FD-OCT

Podoleanu, Adrian Gh. and Hughes, Michael and Bradu, Adrian and Woods, Daniel (2010) From controlling the shape of Talbot bands' visibility to improving the sensitivity decay with depth in FD-OCT. In: Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV. Proceedings of SPIE . SPIE. ISBN 978-0-8194-7950-1. (doi:10.1117/12.840999) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://www.dx.doi.org/10.1117/12.840999

Abstract

We present theoretical and experimental studies on the sensitivity variation versus optical path difference (OPD) in Fourier domain spectral interferometry using configurations which produce Talbot bands. Such configurations require that the two interfering beams use different parts of the diffraction grating in the interrogating spectrometer. We show that by manipulating the power distribution within the two interfering beams, the OPD value where maximum sensitivity is achieved can be conveniently tuned, as well as the sensitivity variation with OPD. Furthermore, creating a gap between the two beams leads to adjustment of the minimum detectable OPD value, while the widths of the beams determine the maximum detectable OPD value. These features cannot be explained by theoretical models involving spectrometer resolution elements only. Improvement in the sensitivity variation with depth is demonstrated experimentally.

Item Type: Book section
DOI/Identification number: 10.1117/12.840999
Additional information: Unmapped bibliographic data: C7 - 75541S [EPrints field already has value set] LA - English [Field not mapped to EPrints] J2 - Progr. Biomed. Opt. Imaging Proc. SPIE [Field not mapped to EPrints] AD - Applied Optics Group, School of Physical Sciences, University of Kent, CT2 7NH, Canterbury, United Kingdom [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints] A4 - The Society of Photo-Optical Instrumentation Engineers (SPIE) [Field not mapped to EPrints] C3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE [Field not mapped to EPrints]
Uncontrolled keywords: Mirror terms, Optical coherence tomography, Talbot bands, Experimental studies, Fourier domains, Interfering beams, Maximum sensitivity, Optical coherence Tomography, Optical path difference, Power distributions, Sensitivity variation, Spectral interferometry, Spectrometer resolutions, Theoretical models, Two beams, Mirrors, Sensitivity analysis, Spectrometers, Spectrometry, Tomography, Coherent light
Subjects: Q Science > QC Physics > QC355 Optics
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 15 Jul 2015 08:21 UTC
Last Modified: 26 Jul 2019 11:17 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49444 (The current URI for this page, for reference purposes)
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