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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.


Papers
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Journal ArticleDOI
01 Sep 2006-EPL
TL;DR: In this article, a negative-refractive-index material composed of ferromagnetic wires was proposed, which is composed of two-dimensional Bravais lattice with the application of external magnetic field.
Abstract: A new structure of negative-refractive-index material is proposed, which is composed of ferromagnetic wires setting in two-dimensional Bravais lattice (FWL) with the application of external magnetic field. The refractive index of the FWL consisting of ferrum wires arranged in square lattice is calculated. The refractive index exhibits negative value in the GHz region. A notable characteristic of the FWL is that the negative refractive index is tunable by the applied external field.

7 citations

Journal ArticleDOI
TL;DR: In this paper, the influence of smooth (not step-like) variation of the dielectric function near a surface on the reflectivity and scattering of x rays is investigated theoretically with the model function ϵ(z) = 1 − 0.5(1 − ϵ+)(1 + tanh(z/(2L))) taken as an example.
Abstract: The influence of smooth (not step-like) variation of the dielectric function near a surface on the reflectivity and scattering of x rays is investigated theoretically with the model function ϵ(z) = 1 − 0.5(1 − ϵ+)(1 + tanh(z/(2L))) taken as an example. It is shown that the presence of the transition layer can essentially change the shape of the differential scattering intensity diagram, especially when the incidence angle of the x-ray beam is greater than the critical angle of the total external reflection (TER). The results of measurements of the x-ray reflection coefficient and the differential scattered intensity are discussed. The model of the near-surface transition layer is shown to describe quantitatively the specific features of experimental curves for the incident beam beyond the TER region, whereas these experimental data cannot be explained in the framework of a step-like model of the dielectric function, taking into account the scattering from surface roughness.

7 citations

Journal ArticleDOI
TL;DR: In this article, the reflection of linearly and circularly polarized electromagnetic waves at the boundary between an isotropic non-active medium and a nonactive medium has been investigated.
Abstract: The authors investigate the reflection of linearly and circularly polarized electromagnetic waves both at the boundary between an isotropic non-active medium and an isotropic optically active medium and at the boundary between an optically active medium and a non-active medium. The components of the electric field and the intensity of the reflected and refracted waves are determined. The following differential reflection methods for studying the optical activity are proposed: usual reflection of left and right circularly polarized waves (reflection optical activity); total reflection of circularly polarized waves; total reflection of linearly polarized waves.

7 citations

Journal ArticleDOI
TL;DR: In this article, a series of reflection resonances formed by the hyperfine components of the D2-lines in the spectrum of the natural mixture of rubidium isotopes is studied.
Abstract: A series of reflection resonances formed by the hyperfine components of the D2-lines in the spectrum of the natural mixture of rubidium isotopes is studied. Passages from resonantly frustrated total internal reflection to resonance Brewster reflection caused by the frequency tuning of the incident light are demonstrated experimentally. The contrast of the strongest refection resonances exceeds 500% at the moderate heating of reflecting cells. The intensity of the reflected light changes in this case by more than 20 times. A theory is developed which is based on a two-level model for resonance atoms and Fresnel formulas for reflection coefficients. Numerical calculations based on the proposed theory confirm main experimental results.

7 citations

Journal ArticleDOI
TL;DR: In this article, a self-made electronic actuator was used to drive the piezoelectric ceramics of FTIR to test the theoretical conclusion that the evanescent of transmission is 80% for He-Ne laser and smaller for YAG laser and Er:glass laser.
Abstract: The mechanism of frustrated total internal reflection was analyzed according to the theory of optical film. The transmission and reflection functions were developed and the curves of transmission and reflection changing from the relative gap width d / λ , incident angle θ 0 , and refraction index n were shown in graphs. We proposed a scheme of experimental device to test the theoretical conclusion. A self-made electronic actuator drove the piezoelectric ceramics of FTIR. Experiments showed that the evanescent of transmission is 80% for He–Ne laser and smaller for YAG laser and Er:glass laser.

7 citations


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