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Proceedings Paper

Liquid crystal tunable filters and polarization controllers for biomedical optical imaging
Author(s): Ofir Aharon; Avner Safrani; Riki Moses; I. Abdulhalim
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Paper Abstract

Liquid crystal (LC) devices exhibit fast and strong tuning and switching capabilities using small voltages and can be miniaturized thus have a great potential to be used with miniature optical imaging systems for biomedical applications. LC devices designed specifically for integration into biomedical optical imaging systems are presented. Using a combination of one or two LC retarders we obtained polarimetric imaging of the skin. LC tunable filters with high dynamic range and large throughput are designed for hyperspectral imaging and for spectral domain optical coherence tomography. The designs are based on several concepts both using the classical stack of retarders and using more modern designs based on single layer in a waveguide or in a Fabry-Perot cavity.

Paper Details

Date Published: 27 August 2008
PDF: 15 pages
Proc. SPIE 7050, Liquid Crystals XII, 70500P (27 August 2008); doi: 10.1117/12.795388
Show Author Affiliations
Ofir Aharon, Ben-Gurion Univ. of the Negev (Israel)
Avner Safrani, Ben-Gurion Univ. of the Negev (Israel)
Riki Moses, Ben-Gurion Univ. of the Negev (Israel)
I. Abdulhalim, Ben-Gurion Univ. of the Negev (Israel)

Published in SPIE Proceedings Vol. 7050:
Liquid Crystals XII
Iam Choon Khoo, Editor(s)

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