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Mueller matrix measurements of algae with different shape and size distributions

机译：不同形状和尺寸分布的藻类的Mueller矩阵测量

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The full Mueller matrix was measured to obtain the polarization state of the scattered light for a variety of algae with different shapes, wall compositions, sizes, and refractive indices. The experimental setup was a multiple laser Mueller matrix ellipsometer, by which measurements were performed for scattering angles from 16 deg to 160 deg sampled at every second degree for wavelengths of 473nm and 532nm. Previously, the polarization of light scattered from microalgae was investigated only for a few species, and the Mueller matrix was found to have little variation between the species. In our work a total of 11 algal species were investigated, representing diatoms, dinoflagellates, coccolithophorids, green algae, and a cryptophyte. The selection of species was made to obtain high variability in shape, size, cell wall, and refractive index. As in previous investigations, very small variations were found between species for most of the Mueller matrix elements, but noticeable variations were found for M_(11), (M_(12) + M_(21))/2 and (M_(33) + M_(44))/2.
机译：测量完整的穆勒矩阵，以获得各种形状，壁组成，大小和折射率不同的藻类的散射光的偏振态。实验装置是一台多激光Mueller矩阵椭圆仪，通过该方法对波长为473nm和532nm的每秒钟采样的16度至160度散射角进行了测量。以前，仅对少数物种研究了从微藻类散射的光的偏振，并且发现穆勒矩阵在物种之间几乎没有变化。在我们的工作中，共调查了11种藻类，分别代表硅藻，鞭毛藻，球墨石藻，绿藻和隐藻。进行物种选择以获得形状，大小，细胞壁和折射率的高度可变性。与之前的研究一样，对于大多数Mueller矩阵元素，物种之间的变化很小，但是M_（11），（M_（12）+ M_（21））/ 2和（M_（33） + M_（44））/ 2。

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