Energy quantities
Thermal radiation in semitransparent media
Article REF: BE8212 V1
Energy quantities
Thermal radiation in semitransparent media

Authors : Denis LEMONNIER, Pascal BOULET

Publication date: June 10, 2025, Review date: November 10, 2024 | Lire en français

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2. Energy quantities

2.1 Intensity

The concept of intensity is introduced by considering the radiant flux (per unit wavelength) dqλ’’ propagating at a given wavelength λ in an elementary solid angle d Ω surrounding the direction defined by the unit vector Ω (figure  5...

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