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Total external reflection

About: Total external reflection is a research topic. Over the lifetime, 829 publications have been published within this topic receiving 22213 citations.


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01 Jan 2006
TL;DR: In this article, a simple interferometric phasemeter which can be used to control the presence of absorption in water solutions is described. But the method is based on the restoration of both p-and s-components of the resultant field.
Abstract: The attenuated total internal reflection (ATIR) is an area of constant interest. The reason for that is the great variety of useful applications based on this phenomenon. In this paper we describe a simple interferometric phasemeter which can be used to control the presence of absorption in water solutions. In the process of the attenuation of the total internal reflection in a three layer system the phase shift between both main polarization components of the reflected field is strongly dependent on the complex value of the index of refraction of the second media. This method is based on the interferometric restoration of both p- and s-components of the resultant field. The resulting interferometrical signal is modeled theoretically and studied experimentally.
Journal ArticleDOI
TL;DR: In this article, the authors consider the problem raised by a microscopic interpretation of the refractive index and study the reflection of a plane wave, in the dipolar approximation, and show that a macroscopic description may be recovered to very good approximation when an 'apparent' this article index is introduced, related to both the local polarisability and its gradient.
Abstract: Optical techniques are widely used to study thin layers and more generally interfacial structures. The authors consider the problem raised by a microscopic interpretation of the refractive index and study the reflection of a plane wave, in the dipolar approximation. They describe microscopically the reflection on a layered interface. It is shown that a macroscopic description may be recovered to very good approximation when an 'apparent' refractive index is introduced. This index is related to both the local polarisability and its gradient. The 'p' wave requires two such indexes, the direction of the gradient being specific. Comparison is established with the Lorentz refractive index profile. In a second part the excess of local field on the interface is computed, and this is applied to study the vicinity of the Brewster incidence.
Posted Content
TL;DR: In this article, the existence of both negative refraction and a negative refractive index in an optical uniaxial absorbent medium that can be characterized by ordinary and extraordinary refractive indices was demonstrated.
Abstract: This work demonstrates the existence of both negative refraction and a negative refractive index in an optical uniaxial absorbent medium that can be characterized by ordinary and extraordinary refractive indices. Negative refraction occurs in any absorbent uniaxial medium if the real part of the extraordinary index is less than its imaginary part. The refractive index is negative when the incident medium is sufficiently dense and the incident angle exceeds a critical angle that is defined here.
Journal Article
TL;DR: In this article, the total reflection through a slab of vacuum and mercury nano-particle is achieved with negative and near zero magnetic permeability, and it is shown that this new design of metamaterial act as an excellent reflector which could be used in many applications.
Abstract: In this study, total reflection through a slab of vacuum and mercury nano-particle is achieved with negative and near zero magnetic permeability. It is shown that this new design of metamaterial act as an excellent reflector which could be used in many applications. This paper also shows that this optical mirror has negative values for magnetic permeability in the blue range of the visible light and total reflection in this range is achieved.
Proceedings ArticleDOI
19 Apr 2016
TL;DR: In this article, the influence of refraction index strength on the light propagation in refraction-index-varied dielectric material has been investigated, and it was found that the greater the strength of the refractive index, the smaller the guiding modes.
Abstract: This study investigated the influence of refraction index strength on the light propagation in refraction index-varied dielectric material. This dielectric material served as photonic lattice. The behavior of light propagation influenced by variation of refraction index in photonic lattice was investigated. Modes of the guiding light were determined numerically using squared-operator iteration method. It was found that the greater the strength of refraction index, the smaller the guiding modes.

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20224
20214
20206
20198
20189
201710