Details

Autor(en) / Beteiligte

• Weber, H.

Titel

The Fresnel equations for lossy dielectrics and conservation of energy

Ist Teil von

• Journal of modern optics, 2014-09, Vol.61 (15), p.1219-1224

Ort / Verlag

Abingdon: Taylor & Francis

Erscheinungsjahr

2014

Quelle

Taylor & Francis

Beschreibungen/Notizen

• The well-known relation for energy conservation at the boundary of two dielectrics R + T = 1 does not hold in the case of lossy systems, if for R and T the conventional relations are used. It has to be corrected to R + T = 1 + Δ. The additional term is derived for the s- and p-components from Maxwell's equations by proper use of the Poynting vectors. Δ depends on the angle of incidence, the complex refractive indices and the polarization. The correct transmission factor for lossy transitions reads . The correction term is very small for dielectrics used in thin film technology, but becomes important for metallic layers.