absorbed (spectral) radiant power density

https://doi.org/10.1351/goldbook.AT07313
Spectral radiant energy per time interval (spectral radiant power, Pλ) absorbed by a system per volume, V. SI unit is W m−4; common unit is W cm−3 nm−1.
Note:
Mathematical expression: Pλ0[1−10−A(λ)]V, where A(λ) is the absorbance at wavelength λ and superscript 0 (zero) indicates incident radiant power.
Source:
PAC, 2007, 79, 293. (Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)) on page 297 [Terms] [Paper]
Citation: 'absorbed (spectral) radiant power density' 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.AT07313 RIS BibTex EndNote
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Last revised: February 24, 2014