Instruments and Facilities

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Emission Spectrophotometer

Molecules can absorb photons of light and at a later time emit photons. Often the ejected light is of longer wavelengths than that absorbed.  Depending on the time it takes to emit the photons, this process is known as either fluorescence or phosphorescence. The SPEX Fluorolog 3 can measure both.  It can also count the photons being emitted and the rate (lifetime) of the photon emission.