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Journal of Biomedical Optics

Spectroscopic sensitive polarimeter for biomedical applications
Author(s): Jessica C. Ramella-Roman; Amritha Nayak; Scott A. Prahl
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Paper Abstract

We present the design and calibration of a spectroscopic sensitive polarimeter. The polarimeter can measure the full Stokes vector in the wavelength range 550 to 750 nm with 1-nm resolution and consists of a fiber-based spectrophotometer, a white light emitting diode light source, two liquid crystal retarders, and one polarizer. Calibration of the system is achieved with a scheme that does not require knowledge of the polarizing elements' orientation or retardation. Six intensity spectra are required to calculate the full spectrum Stokes vector. Error in the polarimeter is less than 5%. We report the Stokes vectors for light transmitted through nonscattering polarizing elements as well as a measurement of the depolarizing properties of chicken muscle at several wavelengths.

Paper Details

Date Published: 1 April 2011
PDF: 8 pages
J. Biomed. Opt. 16(4) 047001 doi: 10.1117/1.3561907
Published in: Journal of Biomedical Optics Volume 16, Issue 4
Show Author Affiliations
Jessica C. Ramella-Roman, The Catholic Univ. of America (United States)
Amritha Nayak, National Institute of Child Health and Human Development (United States)
Scott A. Prahl, Providence St. Vincent Medical Ctr. (United States)

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