Experimental measurements and theoretical modeling of acoustic scattering by a cube

1998 ◽  
Vol 103 (5) ◽  
pp. 2805-2805
Author(s):  
Victor F. Humphrey ◽  
Jingdong Zhang ◽  
Paul A. Chinnery
Keyword(s):  
Acoustic Scattering ◽  
Theoretical Modeling ◽  
Experimental Measurements

The Dynamics of Laser-Induced Changes in Human Skin Autofluorescence—Experimental Measurements and Theoretical Modeling

1998 ◽  
Vol 68 (2) ◽  
pp. 227-236 ◽  
Author(s):  
Haishan Zeng ◽  
Calum MacAulay ◽  
David I. McLean ◽  
Branko Palcic ◽  
Harvey Lui
Keyword(s):  
Human Skin ◽  
Theoretical Modeling ◽  
Experimental Measurements ◽  
Skin Autofluorescence ◽  
Induced Changes

scholarly journals Optical properties of electrochemically etched N-type silicon wafers for solar cell applications

2020 ◽  
Vol 71 (6) ◽  
pp. 406-412
Author(s):  
Martin Králik ◽  
Matej Goraus ◽  
Emil Pinčík
Keyword(s):  
Refractive Index ◽  
Theoretical Model ◽  
Effective Refractive Index ◽  
Crystalline Silicon ◽  
Optical Response ◽  
Theoretical Modeling ◽  
Silicon Wafers ◽  
Experimental Measurements ◽  
Type Silicon ◽  
Vis Spectroscopy

AbstractThe presented experiments and studies are intended for photovoltaic applications of crystalline silicon. This work deals with chemical treatment of the surface of n-type silicon wafers with different resistivity to reduce their reflectivity. Chemical surface treatment of silicon is an alternative method to using the antireflection layer. Optical losses caused by the reflection of light from the surface of the solar cells significantly reduce their efficiency. The investigated samples were prepared by the electrochemical etching method in the solution based on hydrofluoric acid and ethanol. The analysis of the prepared samples is divided into two parts, namely experimental measurements, and theoretical modeling. Experimental measurements are performed using UV-VIS spectroscopy, spectroscopic ellipsometry and SEM microscopy. Theoretical modeling is based on the construction and optimization of theoretical model of optical response (reflectivity and ellipsometric parameters) to determine the effective refractive index and thickness of formed structure. Effective refractive index of studied samples in theoretical model of optical response is based on Looyenga effective medium approximation and Tauc-Lorentz dispersion model.

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