Temporal analysis of optical complex structures: application to tomography through scattering media

Karim Ben Houcine; Gerald Brun; David Reolon; Maxime Jacquot; Isabelle Verrier; Colette Veillas

doi:10.1117/12.513618

18 February 2004 Temporal analysis of optical complex structures: application to tomography through scattering media

Karim Ben Houcine, Gerald Brun, David Reolon, Maxime Jacquot, Isabelle Verrier, Colette Veillas

Proceedings Volume 5249, Optical Design and Engineering; (2004) https://doi.org/10.1117/12.513618
Event: Optical Systems Design, 2003, St. Etienne, France

Abstract

Optical Coherent Tomography (OCT) technique is based on an interferometric device bringing to the inter-correlation between a short reference pulse and the signal issued from the medium. This correlation is obtained by mechanical length modulation of the interferometer reference arm. We propose here an original technique using the SISAM (“Spectroscope Interferentiel a Selection par l’Amplitude de la Modulation”: Interferential Spectrometer by Selection of Amplitude Modulation) correlator, which allows to obtain directly without length modulation, the inter-correlation signal between the reference and the tests waves. With a large spectral bandwidth light source, the temporal depth of the original pulse is short compared to the signal diffused in the complex medium, and the inter-correlation function may be reduced to the impulse response of the structure to be studied. This temporal analysis could be very interesting to obtain both amplitude and phase parameters on the waves propagated in the medium, and could induce significant data on the medium and its structure. We will present the experimental SISAM device and results obtained in imaging through turbid media with this technique. We will also discuss about efficiency of this method in terms of accuracy and of ability to characterize complex structures and media.

Citation Download Citation

Karim Ben Houcine, Gerald Brun, David Reolon, Maxime Jacquot, Isabelle Verrier, and Colette Veillas "Temporal analysis of optical complex structures: application to tomography through scattering media", Proc. SPIE 5249, Optical Design and Engineering, (18 February 2004); https://doi.org/10.1117/12.513618

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available