| The isotropic emission spectra were normalized to the corresponding absorbance at the excitation wavelength. |
| This absorbance is an average for healthy leaves as measured with an integrating sphere. |
| The term extinction coefficients describes the absorbance spectra of a single pure substance at known concentrations. |
| The total cavity loss is then the sum of the mirror transmission and the sample absorbance. |
| The 10 ml samples were centrifuged and the absorbance of the supernatant was measured at 280 nm to determine the lignin content. |
| Under visible light irradiation, much longer durations were necessary to achieve similar absorbance decreases. |
