Lambert law

https://doi.org/10.1351/goldbook.L03445
The fraction of light absorbed by a system is independent of the incident radiant power (Pλ0). This law holds only if Pλ0 is small, scattering is negligible, and multiphoton processes, excited state populations, and photochemical reactions are negligible.
See: absorbance, Beer–Lambert law
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2251 [Terms] [Paper]
Citation: 'Lambert law' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.L03445 RIS BibTex EndNote
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