Shukla Prashant, Pradhan Asima
Department of Physics and Center for Laser Technology, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India.
Appl Opt. 2009 Nov 10;48(32):6099-104. doi: 10.1364/AO.48.006099.
We have investigated the effect of size distribution of aqueous solutions of monodisperse and a mixture of polydisperse scatterers of two different sizes on the image quality using linear and circularly polarized light. The contrast and resolution are affected by the size distribution present in the mixture of a polydisperse medium, while they are affected by the refractive index in a monodisperse medium. Circularly polarized light improves image quality of polydisperse scatterers. Images in the polydisperse medium are retrieved for values of optical thickness less than those of the large-sized monodisperse medium. We offer plausible explanations for all the experimental observations.
我们使用线偏振光和圆偏振光,研究了单分散以及两种不同尺寸的多分散散射体混合物的水溶液的尺寸分布对图像质量的影响。对比度和分辨率受多分散介质混合物中存在的尺寸分布影响,而在单分散介质中则受折射率影响。圆偏振光可改善多分散散射体的图像质量。对于光学厚度小于大尺寸单分散介质的多分散介质,可获取其图像。我们对所有实验观察结果给出了合理的解释。