Measurement of optical constants for dense media by low-coherence dynamic light scattering

Measurement of optical constants for dense media by low-coherence dynamic light scattering
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通过低相干动态光散射测量致密介质的光学常数

DOI:
10.1016/j.optcom.2007.11.009
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发表时间:
2008-03
影响因子:
2.4
通讯作者:
Iwai, Toshiaki
Iwai, Toshiaki
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Ishii, Katsuhiro;Li, Hongjian;Yang, Bingchu;Xia, Hui;Iwai, Toshiaki

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相似文献

利用低相干动态光散射(DLS)技术测量了不同吸收密度介质的光学常数。用估算的颗粒尺寸计算悬浮在稠密介质中的颗粒的散射系数。利用低相干DLS测量中的光程分辨特性,实验研究了吸收性稠密介质后向散射光的光程分辨光强分布。通过将测量的光程分辨强度分布应用于修正的朗伯-比尔定律,可以获得吸收系数。因此,我们提出了一种新的低相干DLS技术,用于同时测量吸收密集介质的散射和吸收系数。
We perform the optical constants measurements for different absorption dense media by low-coherence dynamic light scattering (DLS) technique. The estimated particle size is used to calculate the scattering coefficient of particles suspended in dense media. The path-length resolved intensity distributions of light backscattered from the absorbing dense media are investigated experimentally by virtue of path-length resolved performance in low-coherence DLS measurements. The absorption coefficient can be obtained by applying the measured path-length resolved intensity distributions to the modified Lambert–Beer law. As a result, we proposed a new low-coherence DLS technique in simultaneous measurement of the scattering and absorption coefficients of absorbing dense media.
DOI: 10.1088/0031-9155/42/12/017
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