DocumentCode :
2533909
Title :
Spectroscopic Stokes vector polarimetry for biomedical applications
Author :
Ramella-Roman, Jessica ; Nayak, Amritha
Author_Institution :
Dept. of Biomed. Eng., Catholic Univ. of America, Washington, DC, USA
fYear :
2009
fDate :
4-8 Oct. 2009
Firstpage :
463
Lastpage :
464
Abstract :
We present the design and calibration of a spectroscopic Stokes vector polarimeter. The polarimeter can measure the full Stokes vector in the wavelength range 450 nm to 767 nm with 1 nm resolution and consists of a fiber based spectrophotometer, a white LED 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 of light transmitted through several polarizing element and biological media.
Keywords :
bio-optics; light emitting diodes; light transmission; liquid crystals; optical fibres; optical retarders; polarimeters; spectrophotometers; biomedical applications; calibration; fiber based spectrophotometer; intensity spectra; light transmission; liquid crystal retarders; polarizer; spectroscopic Stokes vector polarimetry; white LED light source; Biomedical measurements; Calibration; Light emitting diodes; Light sources; Liquid crystals; Optical fiber polarization; Optical polarization; Polarimetry; Spectroscopy; Wavelength measurement; Spectroscopy; Stokes vector;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
LEOS Annual Meeting Conference Proceedings, 2009. LEOS '09. IEEE
Conference_Location :
Belek-Antalya
ISSN :
1092-8081
Print_ISBN :
978-1-4244-3680-4
Electronic_ISBN :
1092-8081
Type :
conf
DOI :
10.1109/LEOS.2009.5343183
Filename :
5343183
Link To Document :
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