Figure 1
From: Identifying plastics with photoluminescence spectroscopy and machine learning
A representative selection of PL spectra of samples used in this study. The spectra correspond to (a): pristine LDPE, (b): red algae and (c,d): a consumer product made of LDPE. The spectra in (c,d) correspond to the same sample but were acquired with different alignments of the setup components, laser power values, and exposure times.
