Author Archives: Chris Wesley

Exploring Fluorescence in Olive Oil with my Spectrometer

Fluorescence happens when some substances change the colour of light which shuines on them. In this case, green or violet light from a laser is absorbed by olive oil, then that energy is re-radiated as red light. It looks magical. This video also features low-cost “i-Phos” spectrometer (models for sale – link below) in use. […]