scholarly journals Magneto-Optical Properties of In-Plane Bi-YIG Films with Oblique-Incident Light.

1993 ◽  
Vol 17 (2) ◽  
pp. 157-160
Author(s):  
N. Kawai ◽  
Z. Hirano ◽  
E. Komuro ◽  
T. Namikawa ◽  
Y. Yamazaki
Keyword(s):  
Optical Properties ◽  
Incident Light

scholarly journals Orientation dependence of optical activity in light scattering by nanoparticle clusters

2022 ◽  
Author(s):  
Atefeh Fazel Najafabadi ◽  
Baptiste Auguié
Keyword(s):  
Optical Properties ◽  
Light Scattering ◽  
Optical Activity ◽  
Incident Light ◽  
Spatial Arrangement ◽  
Orientation Dependence ◽  
Nanoparticle Clusters

The optical properties of nanoparticle clusters vary with the spatial arrangement of the constituent particles, but also the overall orientation of the cluster with respect to the incident light. This...

scholarly journals Optical Properties of Spin-Coated TiO2Antireflection Films on Textured Single-Crystalline Silicon Substrates

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Ryosuke Watanabe ◽  
Yohei Eguchi ◽  
Takuya Yamada ◽  
Yoji Saito
Keyword(s):  
Optical Properties ◽  
Crystalline Silicon ◽  
Low Cost ◽  
Incident Light ◽  
Antireflection Coating ◽  
Silicon Wafers ◽  
Reflectance Spectra ◽  
Visible Range ◽  
Single Crystalline Silicon ◽  
Single Crystalline

Antireflection coating (ARC) prepared by a wet process is beneficial for low cost fabrication of photovoltaic cells. In this study, we investigated optical properties and morphologies of spin-coated TiO2ARCs on alkaline textured single-crystalline silicon wafers. Reflectance spectra of the spin-coated ARCs on alkaline textured silicon wafers exhibit no interferences and low reflectance values in the entire visible range. We modeled the structures of the spin-coated films for ray tracing numerical calculation and compared numerically calculated reflectance spectra with the experimental results. This is the first report to clarify the novel optical properties experimentally and theoretically. Optical properties of the spin-coated ARCs without interference are due to the fractional nonuniformity of the thickness of the spin-coated ARCs that cancels out the interference of the incident light.

scholarly journals Возможности применения геометрической оптики для расчетов нано- и микроструктур в фотовольтаике

2019 ◽  
Vol 127 (12) ◽  
pp. 1005
Author(s):  
Е.В. Класс
Keyword(s):  
Optical Properties ◽  
Radiation Transport ◽  
Incident Light ◽  
Estimation Method ◽  
Height Distribution ◽  
Mutual Comparison ◽  
Poor Convergence ◽  
Influence Of Substrate ◽  
Structure Height ◽  
Comparison Of The Results

Numerical simulation of nano and microstructured photovoltaic materials be means radiation transport software may become quite resource-intensive due to poor convergence of the applied optical -properties estimation method. In this paper, applicability of the geometrical optics approximation to microstructure-property modeling was illustrated by mutual comparison of the results of Monte-Carlo simulation in 3D POKS-RG program with a number of available experimental data about optical properties of nano- and microstructures.Numerical simulation accounting peculiar roughness of the surfase as a side effect of etching in microfabrication were in acceptable agreement with the experimental results. The furher analysis revealed essential influence of substrate surfase roughness onto the absorption of the incident light. The aforementioned peculiarity results in nonuniform structure-height distribution of change carriers and might partially cause the modest efficiency of radial p-n junction solar gells.

scholarly journals Surface and optical properties of calcium carbonate paper

2021 ◽  
Vol 57 (4) ◽  
pp. 472-479
Author(s):  
I. I. Ismailov ◽  
Kh. A. Babakhanova ◽  
A. A. Sadriddinov ◽  
M. A. Babahanova ◽  
D. Sh. Saidova
Keyword(s):  
Optical Properties ◽  
Calcium Carbonate ◽  
Quantitative Assessment ◽  
Incident Light ◽  
Reflection Coefficients ◽  
Paper Sample ◽  
Surface Reflection ◽  
Coated Papers ◽  
Paper Company ◽  
The Difference

The article investigates the surface and optical properties of calcium carbonate paper obtained at the UzbekChinese enterprise Fergana stone paper company (Uzbekistan), in order to identify the possibility of their use at printing enterprises for printing multicolor products using traditional printing methods. According to the results of a quantitative assessment of the surface quality by the indirect Beck method, we can say that paper sample 1 has a smoothness like coated paper (750–1500 s), paper samples 2 and 3 – like calendered paper, so that these paper samples can be recommended for prints with increased quality requirements. Smaller values of roughness Ra and small depressions, expressed by darkening in the topographic AFM images, characterized sufficient homogeneity and density of the structure. It was also revealed that the surface of the paper samples has a high ability to specularly reflect the incident light, since the percentage of surface reflection is similar to that of coated papers. Samples of paper have a whiteness of about 90 % and do not have a tint, since the difference between the maximum and minimum values of the reflection coefficients on a white stack is not more than 10 %. The tested paper samples can be recommended without restrictions for double-sided printing, since the opacity index is more than 92 %.

Characterization Of Pathological Skin Sample By Polarimetric Technique

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Anil Gupta ◽  
C LP Gupta ◽  
Purnima Bharti ◽  
Devash Kumar
Keyword(s):  
Experimental Study ◽  
Optical Properties ◽  
Light Intensity ◽  
Physical Properties ◽  
Biological Tissue ◽  
Incident Light ◽  
Polarization State ◽  
Skin Sample ◽  
Skin Changes

Measurement of optical properties of skin is an expanding and growing field of research. Recent studies have shown that the biological tissue, especially skin changes the polarization state of the incident light. Using this property will enable the study of abnormalities and diseases that alter not only the light intensity but also its polarization state. We have tried an experimental study for measuring changes of polarization state of the light scattered from skin sample. Using the strokes vector and Mueller matrix notation we have shown that some elements of matrix were sensitive to the changes of the polarization when physical properties of the scatters are changed with sample.

The Depolarization of Light Scattered in Solutions of Rubber Like Polymers

1947 ◽  
Vol 20 (4) ◽  
pp. 912-915
Author(s):  
V. Tsvetkov ◽  
E. Frisman
Keyword(s):  
Optical Properties ◽  
Scattered Light ◽  
Incident Light ◽  
Incident Beam ◽  
The State ◽  
Dispersed Phase ◽  
Colloidal Solutions ◽  
State Of Polarization ◽  
Depolarization Of Light

Abstract Investigation of the depolarization of light, Δ, scattered by colloidal solutions is one of the methods of determining the dimensions, shape and optical properties of the particles suspended in them. A study of the state of polarization of the scattered light is found to be especially helpful in this respect. If the incident beam is directed along the x-axis of a rectangular system of coördinates and observation is carried out along the y-axis, the degree of depolarization of the scattered light is usually determined by the ratio Δ=Ix'Iz, where Ix and Iz are the x- and z-components, respectively, of the scattered light. Here one should discriminate between the quantity Δv (the electrical vector of the incident light parallel to the z-axis) and the quantity Δh (the electrical vector of the incident light parallel to the y-axis). On the basis of theories advanced by Rayleigh, Mie, and Gans one may draw the following general conclusions regarding the relation between Δ and the properties of the dispersed phase.

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