Figure | Metasurface polarimeter and experimental results. (IMAGE)
Caption
Figure | Metasurface polarimeter and experimental results. A schematic of the metasurface grating beam path (above), where the input beam is incident on a beam splitter. The light is reflected onto a metasurface designed to split the incoming light into 6 different diffraction orders with intensities that depend on the incoming polarization state. These diffraction orders are collimated and focused by a planoconvex lens on the opposite side of the beam splitter before being measured by a camera sensor. Below the schematic are measurement results when using the metasurface polarimeter to analyze light scattering in a tissue phantom. The color map to the right is the degree of polarization (DOP) for light scattered from different points on the tissue phantom, while the magenta, green and blue squares indicate the measurements where the state of polarization has been plotted on the Poincare sphere to the left. The DOP and polarization state can be used to distinguish parts of the tissue with different scattering properties.
Credit
Paul Thrane et al.
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Credit must be given to the creator.
License
CC BY