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Area Radio wave propagation / Electromagnetic properties of propagation media

IEV ref 705-03-20

en
complex refractive index (in a given direction)
a dimensionless complex scalar quantity n, characteristic of a medium at a given point and in a given direction, when there can exist in the medium a sinusoidal electromagnetic wave whose wave vector K _ MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meqabaGacmaadaWaaiWabiabciaafiaakeaadaWhcaqaamaamaaabaGaam4saaaaaiaawEniaaaa@3C22@ has colinear real and imaginary parts K MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meWabaGacmGadiWaaiWabaabaiaafaaakeaadaWhcaqaaiqadUeagaqbaaGaay51Gaaaaa@3C1D@ and K MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meWabaGacmGadiWaaiWabaabaiaafaaakeaadaWhcaqaaiqadUeagaGbaaGaay51Gaaaaa@3C1E@ , in the given direction; this quantity is defined by the equation:

K _ = K +j K = n _ ω c 0 u MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meaabaGacmGadiWaaiWabaabaiaafaaake aadaWhcaqaamaamaaabaGaam4saaaaaiaawEniaiabg2da9maaFiaa baGabm4sayaafaaacaGLxdcacqGHRaWkciGGQbWaa8HaaeaaceWGlb GbayaaaiaawEniaiabg2da9maamaaabaGaamOBaaaadaWcaaqaaiab eM8a3bqaaiaadogadaWgaaWcbaGaae4BaaqabaaaaOWaa8Haaeaaca WG1baacaGLxdcaaaa@4CBD@

where ω is the angular frequency, c0 is the velocity of propagation of electromagnetic waves in vacuum and u MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meWabaGacmaadaWaaiWabaabaiaafaaakeaadaWhcaqaaiaadseaaiaawEniaaaa@3C07@ is the unit vector in the given direction

Note 1 – For an isotropic medium, the complex refractive index is the square root of the product of the relative complex permittivity and the relative complex permeability.

Note 2 – For each direction in an anisotropic medium, there are generally two distinct wave vectors and two values of the complex refractive index.


fr
indice de réfraction complexe (dans une direction donnée) m
grandeur scalaire complexe n, sans dimension, caractérisant un milieu en un point et dans une direction donnée, lorsque peut y exister une onde électromagnétique sinusoïdale dont le vecteur d'onde K _ MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meqabaGacmaadaWaaiWabiabciaafiaakeaadaWhcaqaamaamaaabaGaam4saaaaaiaawEniaaaa@3C22@ a ses parties réelle K MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meWabaGacmGadiWaaiWabaabaiaafaaakeaadaWhcaqaaiqadUeagaqbaaGaay51Gaaaaa@3C1D@ et imaginaire K MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meWabaGacmGadiWaaiWabaabaiaafaaakeaadaWhcaqaaiqadUeagaGbaaGaay51Gaaaaa@3C1E@ colinéaires dans la direction donnée; cette grandeur est définie par la relation:

K _ = K +j K = n _ ω c 0 u MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meaabaGacmGadiWaaiWabaabaiaafaaake aadaWhcaqaamaamaaabaGaam4saaaaaiaawEniaiabg2da9maaFiaa baGabm4sayaafaaacaGLxdcacqGHRaWkciGGQbWaa8HaaeaaceWGlb GbayaaaiaawEniaiabg2da9maamaaabaGaamOBaaaadaWcaaqaaiab eM8a3bqaaiaadogadaWgaaWcbaGaae4BaaqabaaaaOWaa8Haaeaaca WG1baacaGLxdcaaaa@4CBD@

ω est la pulsation, c0 la vitesse de propagation des ondes électromagnétiques dans le vide et u MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meWabaGacmaadaWaaiWabaabaiaafaaakeaadaWhcaqaaiaadseaaiaawEniaaaa@3C07@ le vecteur unitaire de la direction donnée

Note 1 – Dans un milieu isotrope, l'indice de réfraction complexe est la racine carrée du produit de la permittivité relative complexe par la perméabilité relative complexe.

Note 2 – Dans un milieu anisotrope, il y a en général, pour chaque direction, deux vecteurs d'onde distincts et deux valeurs de l'indice de réfraction complexe.


ar
دليل الانكسار المركب (في اتجاه معطى)

de
komplexe Brechzahl, <in einer gegebenen Richtung> f

es
índice de refracción complejo (en una dirección dada)

it
indice di rifrazione complesso (in una data direzione)

ko
복소 굴절률, <주어진 방향>

ja
特定角における複素屈折率
複素屈折率

pl
współczynnik załamania zespolony

pt
índice de refracção complexo (numa dada direcção)

sv
komplext brytningsindex

Publication date: 1995-09
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