Acoustic Absorption of Multi-Layer Structure Composed of Porous Layers Based on Biot's Model and Transfer Matrix Method

2013 ◽  
Vol 99 (5) ◽  
pp. 751-758 ◽  
Author(s):  
Shande Luo ◽  
Qibai Huang
Keyword(s):  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Layer Structure ◽  
Acoustic Absorption ◽  
Porous Layers ◽  
Biot’S Model

scholarly journals One-Way Zero Reflection in an Insulator-Metal-Insulator Structure Using the Transfer Matrix Method

Photonics ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 8
Author(s):  
Heeso Noh ◽  
Jai-Min Choi
Keyword(s):  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Layer Structure ◽  
Incident Light ◽  
Sio2 Layer ◽  
Reflection Spectra ◽  
Metal Insulator

We numerically demonstrate one-way zero reflection using the transfer matrix method. Using simulations, we adjusted the thickness of SiO2 layers in a simple SiO2-Au-SiO2 layer structure. We found two solutions, 47 nm-10 nm-32 nm and 71 nm-10 nm-60 nm, which are the thicknesses for one-way zero reflection at a wavelength of 560 nm. We confirmed it with reflection spectra, where reflectance is zero for forwardly incident light and 2.5% for backwardly incident light at the wavelength 560 nm, and thickness 47 nm-10 nm-32 nm.

Calculation for the Acoustic Absorption Coefficient of Multilayered Materials by an Improved Extended Transfer Matrix Method

2010 ◽  
Vol 160-162 ◽  
pp. 1257-1263
Author(s):  
Xue Yang ◽  
Wei Xiong Yu ◽  
Shen Lin Yang ◽  
Lin He ◽  
Jin Li Sun
Keyword(s):  
Absorption Coefficient ◽  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Acoustic Absorption ◽  
Viscoelastic Materials ◽  
Multilayered Structures ◽  
Incidence Plane ◽  
Acoustic Absorption Coefficient ◽  
Good Agreement

This paper describes an improved extended transfer matrix method to evaluate the acoustic absorption coefficient of multi-layered structure with viscoelactic materials for perpendicular incidence plane acoustic. Here, the dynamic behavior of viscoelastic materials is taken into account. By comparing the calculated and measured results, it is shown that the results calculated by the improved extended transfer matrix method are in good agreement with the results measured. This improved extended transfer matrix method can accurately estimate the sound properties of multilayered structures with viscoelastic materials.

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