Tuneable-laser based time-resolved fluorescence spectrophotometer

Fluorescence measurements involve exciting a sample (powder or liquid) with light of one wavelength and then measuring difference light (luminescence) which is emitted. The equipment consists of a xenon lamp with double monochromator to provide continuous excitation) and a laser with optical parametric oscillator (OPO) to provide pulsed excitation, both of which can be tuned to different wavelengths starting at about 200 nm in the far ultraviolet region.