spectral radiant energy density

symbols: $\rho_{\tilde{\nu}}(\tilde{\nu})$, $\rho_{\lambda}(\lambda)$, unit: $\pu{J m-2}$
https://doi.org/10.1351/goldbook.08287
Radiant energy density in unit wavenumber (wavelength) interval at wavenumber \(\tilde{\nu}\) (wavelength \(\lambda\)).
Note: SI unit: \(\pu{J m-2}\).
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 674 [Terms] [Paper]
Citation: 'spectral radiant energy 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.08287 RIS BibTex EndNote
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