## absorbed (spectral) radiant power density

https://doi.org/10.1351/goldbook.AT07313
@[email protected] per time interval (@[email protected], $$P_{\lambda}$$) absorbed by a system per volume, $$V$$. SI unit is $$\text{W m}^{-4}$$; common unit is $$\text{W cm}^{-3}\ \text{nm}^{-1}$$.
Note:
Mathematical expression: $$\frac{P_{\lambda}^{0}[1 - 10^{-A(\lambda)}]}{V}$$, where $$A(\lambda)$$ is the @[email protected] at @[email protected] $$\lambda$$ and superscript $$0$$ (zero) indicates incident @[email protected]
Source:
PAC, 2007, 79, 293. (Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)) on page 297 [Terms] [Paper]