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Retrieving "Fresnel Equations" from the archives

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  1. Reflection

    Linked via "Fresnel equations"

    Interaction with Matter
    The efficiency of reflection (the reflectance, $R$) is dictated by the impedance mismatch between the incident medium and the reflecting medium, often quantified using the Fresnel equations. For unpolarized light|striking a boundary between two dielectrics with refractive indices $n1$ and $n2$, the reflectance is given by:
    $$R = \left( \frac{n1 \cos \thetai - n2 \cos \thetat}{n1 \cos \thetai + n_2 \cos \…

  2. Transmission Coefficient

    Linked via "Fresnel equations"

    Transmission in Optical Systems (Reflectivity and Absorptivity)
    In optics, the transmission coefficient ($T$) is related to the intensity of light passing through a non-absorbing medium relative to the incident intensity. For a single interface separating two dielectric media with refractive indices $n1$ and $n2$, the calculation depends on the polarization of the incident light relative to the plane of incidence (s-polarization or [p-polarization](/entries/p-p…