Preferred Label : spectral quantities;
IUPAC definition : Quantities characterizing electromagnetic radiation (radiant power, energy, energy
density, intensity, exitance, radiance, irradiance, etc.) derived by differentiation
with respect to wavelength, frequency or wavenumber, e.g. spectral (concentration
of) irradiance is the derivative of the irradiance with respect to wavelength (Eλ),
frequency (Eν) or wavenumber (Eν ).;
Origin ID : S05823;
See also
Quantities characterizing electromagnetic radiation (radiant power, energy, energy
density, intensity, exitance, radiance, irradiance, etc.) derived by differentiation
with respect to wavelength, frequency or wavenumber, e.g. spectral (concentration
of) irradiance is the derivative of the irradiance with respect to wavelength (Eλ),
frequency (Eν) or wavenumber (Eν ).
