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Hybrid configuration for simultaneous en-face OCT imaging at different depths

Podoleanu, Adrian G.H., Cucu, R.G., Pedro, J., Weitz, R., Jackson, David A., Rosen, R.B. (2005) Hybrid configuration for simultaneous en-face OCT imaging at different depths. In: SPIE Proceedings Series. Proceedings of SPIE - The International Society for Optical Engineering. 5634 (PART 1). pp. 160-165. Spie-Int Soc Optical Engineering (doi:10.1117/12.576763) (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)

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. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1117/12.576763

Abstract

By dividing both the object and reference beam in an OCT interferometer, two independent OCT imaging channels are assembled. The depth scanning proceeds simultaneously in the two OCT channels and from the same range, however a differential optical path difference can be introduced between the two channels. In this way, two simultaneous images are generated where the depth differs in each pixel by the differential optical path difference. A dual OCT system working at 850 nm was devised and we demonstrate the capability of the method by simultaneously acquiring images from the optic nerve and fovea of a volunteer. The configuration devised insures a strict pixel to pixel correspondence between the two images irrespective of the axial eye movements while the depth difference between the corresponding pixels is exactly the differential optical path difference. The images are collected by fast en-face scanning (T-scan) which allows both B-scan and C-scan acquisition.

Item Type: Conference or workshop item (Proceeding)
DOI/Identification number: 10.1117/12.576763
Uncontrolled keywords: En face in vivo imaging, Low coherence interferometry, Multiplexing, Alumina, Bandwidth, Interferometers, Interferometry, Lasers, Multiplexing, Scanning, Tissue, Titanium, En face in vivo imaging, Low coherence interferometry, Mach-Zehnder interferometer, Optical path difference (OPD), Imaging techniques
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: Giles Tarver
Date Deposited: 24 Jul 2015 15:40 UTC
Last Modified: 29 May 2019 14:55 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49771 (The current URI for this page, for reference purposes)
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