SYSTEM FOR ANALYZING OPTICAL PROPERTIES OF AN OBJECT

    公开(公告)号:US20170241766A1

    公开(公告)日:2017-08-24

    申请号:US15502147

    申请日:2015-08-07

    Abstract: In a system for analyzing optical properties of an object (350) a point source of light (100) composed of multiple spectral bands each having a respective amplitude, phase and polarization is converted by first optics (120, 150) into a line light source to illuminate an object line on the object. A beam splitter (200) splits the light exiting the first optics and directs a first portion of light on to the object (350) as an illuminated line and a second portion of the light on to a reference mirror (450). Second optics (500) collects respective first and second lines of light reflected by the object and mirror of and collinearly images the reflected lines of light as an image line on to an imaging spectrometer (550) wherein mutual interference allows determination of the optical properties of the object at each point along the object line.

    DEVICE AND METHOD FOR REMOTE POLARIMETRIC CHARACTERIZATION

    公开(公告)号:US20170102319A1

    公开(公告)日:2017-04-13

    申请号:US15126798

    申请日:2015-02-18

    Abstract: According to one aspect, the invention relates to a device (100) for remote polarimetric characterisation of a sample (S). It comprises a source (10) for emitting at least one incident light wave at at least one first wavelength (λE); a monomode optical fibre (30) in which the incident light wave is intended to propagate; a polarisation state generator (PSG) arranged on the proximal side of the optical fibre; a reflector (40) intended to be arranged on the distal side of the optical fibre; a polarisation state analyser (PSA) arranged on the proximal side of the optical fibre and allowing, for each probe state of the incident wave generated by the polarisation state generator, the polarisation of the light wave obtained after propagation of the incident wave in the optical fibre (30), reflection from the distal side of the optical fibre and reverse propagation in the optical fibre (30), to be analysed. Processing means (70) make it possible to determine, from a first polarimetric characterisation of the optical fibre, a Mueller matrix (MF) associated with the optical fibre, and, from a second polarimetric characterisation of the assembly comprising the optical fibre and the sample, a Mueller matrix (MT) associated with said assembly. The Mueller matrix (Mo) associated with the sample is determined from the Mueller matrices associated with the optical fibre and the assembly comprising the optical fibre and the sample, respectively.

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