scholarly journals A Wave Splitter with Simple Structure Based on Biaxial Anisotropic Medium

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Chushun Zhang ◽  
Hui Huang ◽  
Luchen Huang ◽  
Yaru Dong ◽  
Xiaoyu Liu
Keyword(s):  
Anisotropic Medium ◽  
Isotropic Medium ◽  
Simple Structure ◽  
Incident Angle ◽  
Total Reflection ◽  
Total Transmission ◽  
Anisotropic Slab ◽  
Constitutive Parameters

A TE/TM wave splitter based on biaxial anisotropic slab is designed. According to the total reflection and total transmission of TE/TM waves incident from isotropic medium into biaxial anisotropic medium, we propose a wave splitter with simple structure and little limitation on both constitutive parameters and incident angle. All the results are verified by simulation.

Total reflection of light propagating from an isotropic medium to an anisotropic medium

2001 ◽  
Vol 26 (16) ◽  
pp. 1251 ◽  
Author(s):  
G. F. Torres del Castillo ◽  
C. J. Pérez Ballinas
Keyword(s):  
Anisotropic Medium ◽  
Isotropic Medium ◽  
Total Reflection ◽  
Reflection Of Light

Thermal Stresses in a Multilayered Anisotropic Medium With Interface Thermal Resistance

1995 ◽  
Vol 62 (3) ◽  
pp. 810-811 ◽  
Author(s):  
T. C. Chen ◽  
H. I. Jang
Keyword(s):  
Thermal Resistance ◽  
Anisotropic Medium ◽  
Thermal Stresses ◽  
Complete Solution ◽  
Thermal Contact ◽  
Plane Deformation ◽  
Numerical Illustration ◽  
Contact Conditions ◽  
Interface Thermal Resistance ◽  
Anisotropic Slab

This note is concerned with thermoelastic analysis of a multilayered anisotropic medium under the state of generalized plane deformation with interlayer thermal contact resistance. The powerful flexibility/stiffness matrix method is adopted here to obtain the complete solution of the entire layered medium by introducing the thermal and mechanical boundary and layer interface conditions including interlayer imperfect thermal contact conditions. As a numerical illustration, the effects of interlayer thermal resistance on the distributions of temperatures and thermal stresses in a laminated anisotropic slab subjected to a uniform surface temperature rise are presented.

Real-Time Visualization Method of Surface Plasmon Resonance with Spectroscopic Attenuated Total Reflection

2009 ◽  
Vol 1182 ◽  
Author(s):  
Kensuke Murai
Keyword(s):  
Surface Plasmon Resonance ◽  
Real Time ◽  
Metal Surface ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Incident Angle ◽  
Total Reflection ◽  
Wave Number ◽  
Visualization Method ◽  
Two Dimensional

AbstractWe report the real-time visualization method of surface plasmon resonance with the spectroscopic attenuated total reflection. Recently, surface plasmon resonance (SPR) had been studied for plasmonics devices to construct faster processor in the electronic microprocessors. SPR is strong interaction between light and free electron near metal surface, which cause absorption of light due to its resonance. The behavior can be explained with Fresnel’s equation. As the wave number of light with a certain frequency is not matched with that of surface plasmon, a prism or a grating is used in order to compensate this mismatching. In the prism case, the wave number is changed by changing the incident angle to the metal surface inside the prism as ksp=n*k0sinθ, where ksp and k0 is the wave numbers of surface plasmon and incident light, respectively, n is the refractive index of the prism and θ is the incident angle to the metal surface inside the prism. Therefore, the SPR can be observed by absorption of light as functions of the wavelength and the incident angle. This resonance behavior as functions of the wavelength and the incident angle can be observed directly with a two-dimensional detector such as a CCD camera. As the two-dimensional SPR images for 50nm-thick silver films on the prism surface have been observed experimentally, they have good agreement with calculated ones. Kretchmann configuration using a glass prism and an approximately 50-nm-thick silver or gold film was often used in order to evaluate the optical constants of the film. Most of SPR signals had been measured with either angular or spectral dependence with this geometry. In the case of angular dependence, the monochromatic laser, e.g. He-Ne laser at 632.8nm, is often used for the incident light. One can measure reflection loss as a function of an incident angle in the total reflection region. Increase in the resonance angle of SPR is well known when the thin oxide film on the metal film. The two-dimensional image of SPR is called “surface plasmon spectral fingerprint”, because it can inform conditions of metal films whether they are reacted or oxidized. Many fingerprints are expected by changing the thickness of the coating layer on the silver surface. In our method, thin metal film on a prism was excited by focusing beam of white light. SPR was clearly visualized with a spectrometer equipped with a two-dimensional CCD detector in the coordination of the incident angle and the wavelength. Various metal films could be distinguished even in partially oxidized condition. This real-time SPR visualization method would be useful not only for monitoring of surface reaction but for fabricating plasmonic devices.

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