Wavefront-division polarimetric analysis method and device, spectropolarimeter, polarimetric camera and optical microscope using such a device

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United States of America Patent

PATENT NO 9551618
APP PUB NO 20150204724A1
SERIAL NO

14417618

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Abstract

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An accurate and robust wavefront-division polarimetric analysis method and device, allows the quasi-instantaneous measurement of the polarization states of a luminous object. The device can be used to produce a plurality of light beams, all polarized according to different polarization states, from a single upstream light beam. The polarized light beams, which do not overlap and which carry information items that are complementary in terms of polarization, are analyzed simultaneously by a plurality of detectors that measure the luminous intensity of each beam. Processing elements digitally process the luminous intensity values obtained in order to determine the polarization state of the upstream light beam. The operations performed by the processing elements prevent luminous intensity variations in the split light beams during the division of the wavefront of the upstream light beam. Therefore, the wavefront-division polarimetric analysis device is robust and its accuracy is not hindered by the experimental conditions.

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Patent Owner(s)

Patent OwnerAddress
HORIBA JOBIN YVON SAS16-18 RUE DU CANAL LONGJUMEAU F-91160

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Acher, Olivier Gif sur Yvette, FR 27 108
Nguyen, Thanh-Liem Meudon, FR 2 5
Richard, Simon Villebon sur Yvette, FR 36 1632

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