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research article

Spectroscopic optical coherence tomography based on wavelength de-multiplexing and smart pixel array detection

Laubscher, M.
•
Bourquin, S.  
•
Froehly, L.  
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2004
Optics Communications

Current spectroscopic optical coherence tomography (OCT) methods rely on a posteriori numerical calculation. We present an experimental alternative for accessing spectroscopic information in OCT without post-processing based on wavelength de-multiplexing and parallel detection using a diffraction grating and a smart pixel detector array. Both a conventional A-scan with high axial resolution and the spectrally resolved measurement are acquired simultaneously. A proof-of-principle demonstration is given on a dynamically changing absorbing sample. The method's potential for fast spectroscopic OCT imaging is discussed. The spectral measurements obtained with this approach are insensitive to scan non-linearities or sample movements. (C) 2004 Elsevier B.V. All rights reserved.

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Type
research article
DOI
10.1016/j.optcom.2004.03.084
Web of Science ID

WOS:000222376700007

Author(s)
Laubscher, M.
•
Bourquin, S.  
•
Froehly, L.  
•
Karamata, B.  
•
Lasser, T.  
Date Issued

2004

Published in
Optics Communications
Volume

237

Issue

4-6

Start page

275

End page

283

Subjects

optical coherence tomography

•

spectroscopy

•

smart pixel detector array

•

INTERFEROMETRY

•

REFLECTOMETRY

•

ABSORPTION

Note

Swiss Fed Inst Technol, Lab Opt Biomed, CH-1015 Lausanne, Switzerland. Laubscher, M, Swiss Fed Inst Technol, Lab Opt Biomed, CH-1015 Lausanne, Switzerland. markus.laubscher@epfl.ch

ISI Document Delivery No.: 833YD

Cited Reference Count: 17

Peer reviewed

REVIEWED

Written at

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Available on Infoscience
October 3, 2006
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/234920
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