Reflection, transmission, absorption
Optical thin films and interferential filtering

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AF3348 V1 Article

Reflection, transmission, absorption
Optical thin films and interferential filtering

Authors : Claude AMRA, Catherine GRÈZES-BESSET

Publication date: January 10, 2011 | Lire en français

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3. Reflection, transmission, absorption

We show here that simple analytical reasoning is possible as soon as the admittances are known. The stacks below are illuminated by a plane wave of amplitude A 0+ via the superstrate. We restrict ourselves to tangential fields, which allows us to use admittance properties.

3.1 Reflection

The reflection coefficient r 0 in amplitude of a stack illuminated on the superstrate side is defined for each polarization as :

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