S-polarized light

...The relationship between the amplitude and phase of the reflected or refracted light and the incident light is determined by the ratio of the radiation impedance of the first medium to the second medium. If the magnitudes of the electric fields of the incident light, reflected light, and refracted light are E _I , E _R , and E _D , respectively, the following relationship, called the Fresnel coefficient, holds between them (provided that the permeabilities _{μ 1 and μ 2 of the first and second media can be considered as μ 1 = μ 2 = μ 0 )} . (1) When the electric field of the light is perpendicular to the plane of incidence (such light is called s-polarized light), (2) When the electric field of the light is parallel to the plane of incidence (called p-polarized light), as can be seen from this, when θ _D + θ _I = π/2 is satisfied, the reflection coefficient of p-polarized light whose electric field is parallel to the plane of incidence is 0, in other words, p-polarized light is not reflected. This occurs at an angle of incidence of tanθ _I = n ₂₁ , which is called the Brewster angle. ...

*Some of the terminology that refers to "s-polarized light" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…反射光や屈折光と入射光との間の振幅と位相の関係は，第1媒質と第2媒質との放射インピーダンスの比で決まり，入射光，反射光および屈折光の電場の大きさをそれぞれE_I,E_RおよびE_Dとするとき，それらの間にフレネル係数と呼ばれる次の関係が成立する(ただし，第1媒質および第2媒質の透磁率μ₁,μ₂が，μ₁＝μ₂＝μ₀とみなせる場合)。(1)光の電場が入射面に垂直な場合(このような光をs偏光という)，(2)光の電場が入射面に平行な場合(p偏光という)，これからわかるように，θ_D＋θ_I＝π/2が満たされるとき，電場が入射面に平行なp偏光の反射係数は0，いいかえればp偏光は反射されない。これはtanθ_I＝n₂₁なる入射角で起こり，この角をブルースター角という。…

※「ｓ 偏光」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報