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Proceedings Paper

Polarization-based microscopy using a fiber optic spectral polarimeter
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Paper Abstract

We present a fiber optic spectral polarimeter, an instrument that allows measurement of the spectrally resolved Stokes parameters. The instrument consists of a pair of polarization maintaining (PM) fibers spliced at 45 degree(s) with respect to each other in line with a polarizer module whose transmission axis is aligned to the fast axis of the first PM fiber. The generated spectrum is composed of three quasi- cosinusoidal components, which carry information required to reconstruct the spectrally resolved Stokes parameters of incident light. Fourier transform of the measured spectrum provides the significant parameters for determination of the spectrally resolved Stokes parameters of light. The performance of the fiber optic spectral polarimeter is demonstrated by the computer simulation and experiments with input light of known polarization states. A unique characteristic of this instrument is that the spectrally resolved polarization state of incident light can be determined from one spectral measurement without any mechanical movement. Moreover, the instrument can be incorporated into a tomographic imaging system such as a conventional microscopy system. Polarization based microscopy combined with a fiber optic spectral polarimeter will provide measurements that allow better understanding of depolarization process of light passing through biological materials for diagnostic imaging.

Paper Details

Date Published: 27 June 2002
PDF: 9 pages
Proc. SPIE 4617, Laser Tissue Interaction XIII: Photochemical, Photothermal, and Photomechanical, (27 June 2002); doi: 10.1117/12.472524
Show Author Affiliations
Eunha Kim, Univ. of Texas/Austin (United States)
Digant P. Dave, Univ. of Texas/Austin (United States)
Thomas E. Milner, Univ. of Texas/Austin (United States)

Published in SPIE Proceedings Vol. 4617:
Laser Tissue Interaction XIII: Photochemical, Photothermal, and Photomechanical
Steven L. Jacques; Donald Dean Duncan; Donald Dean Duncan; Sean J. Kirkpatrick; Sean J. Kirkpatrick; Andres Kriete; Andres Kriete, Editor(s)

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