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Spectrofluorometer with Cryostat

Photonics.com
Mar 2015
Edinburgh Instruments Ltd., PhotonicsRequest Info
 
LIVINGSTON, Scotland, March 13, 2015 — Edinburgh Instruments has combined its FS5 single-photon-counting spectrofluorometer with a liquid nitrogen cryostatEdinburgh Instruments has combined its FS5 single-photon-counting spectrofluorometer with a liquid nitrogen cryostat.

This enables users to measure the spectral properties of a sample from 77 to 500 K, such as in phosphorescence or delayed fluorescence measurements where samples are sometimes frozen at liquid nitrogen temperatures in order to preserve the fragile triplet state.

The system enables automated 3-D measurements in order to produce temperature-dependent maps of excitation, emission, synchronous scans and phosphorescence and fluorescence decays.

It can measure samples of different states, including solid crystals, thin films, powders and liquids using a variety of sample holders.


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GLOSSARY
cryostat
A device used to maintain near-absolute temperatures for experimental procedures.
fluorescence
The emission of light or other electromagnetic radiation of longer wavelengths by a substance as a result of the absorption of some other radiation of shorter wavelengths, provided the emission continues only as long as the stimulus producing it is maintained. In other words, fluorescence is the luminescence that persists for less than about 10-8 s after excitation.
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