self-absorption effect

in luminescence spectroscopy
https://doi.org/10.1351/goldbook.S05580
The reabsorption of @[email protected] by the analyte and interfering impurities within the excitation volume.
Source:
PAC, 1984, 56, 231. (Nomenclature, symbols, units and their usage in spectrochemical analysis-Part VI: molecular luminescence spectroscopy) on page 244 [Terms] [Paper]