Retrieving "Photoluminescence Excitation Spectroscopy" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Photoluminescence

   Linked via "PLE spectroscopy"

   Photoluminescence Excitation (PLE) Spectroscopy
   PLE spectroscopy monitors the emission intensity at a fixed wavelength while systematically varying the excitation wavelength. The resulting spectrum maps the material's absorption profile as detected through the emission channel. For high-purity semiconductors, the $\text{PLE}$ spectrum should perfectly mirror the conventional absorption spectrum. Deviations, particularly the appearance of secondary excitation peaks in the nea…