Refractive index retrieval from transmittance measurements
Refractive index retrieval from transmittance measurements
复制标题
从透射率测量中检索折射率
DOI：
10.1016/j.ijleo.2016.03.073
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发表时间：
2015
期刊：
影响因子：
3.1
通讯作者：
Terhi Suoranta and Alexey Popov
中科院分区：
文献类型：
--
作者：
Ilpo Niskanen;Matti Harkonen;Kenichi Hibino;Terhi Suoranta and Alexey Popov
本研究的重点是发展一种分析方法，同时检索的折射率和浓度的颗粒测量悬浮液在工业应用。该方法基于波长匹配方法，其思想是通过扫描照射波长来找到悬浮液的透光率最大值。这些样品是由全球不同生产商生产的氟化钙(CaF2)粉末。波长匹配法是一种相对简单、经济、快速的获取粒子折射率的方法。波长匹配方法也被认为与颗粒大小和形态无关。折射率是非常重要的，例如，如果产品的不透明度，如纸或防晒霜，寻求提高产品质量。
This study focuses on the development of an analytical method for simultaneous retrieval of the refractive index and the concentration of particles by measuring suspensions in industrial applications. The proposed method is based on the wavelength-matching method, where the idea is to find the maximum value of light transmittance of the suspension by scanning the irradiation wavelength. The samples were calcium fluoride (CaF2) powders manufactured by different global producers. The wavelength-matching method is suggested to be a relatively easy, economic and fast modality to retrieve the refractive index of particles. The wavelength-matching method is also considered to be independent on particle size and morphology. The refractive index is of high importance, for instance, if the opacity of products, such as paper or sunscreens, is sought to be increased for product quality improvement.