Terms sourced from: 10.1351/pac198557010105

"Names, symbols, definitions and units of quantities in optical spectroscopy (Recommendations 1984)", Sheppard, N.;Willis, H.A.;Rigg, J.C., Pure and Applied Chemistry 1985, 57(1), 105

absorptance \(\alpha\)decadic absorbance \(A\)optical spectroscopy spectral radiant power \(P_{\lambda}\)specular reflectance \(\rho\)total radiant power wavelength \(\lambda\)wavenumber \(\sigma\),\(\tilde{\nu }\)