Elimination of pressure-induced fluorescence in diamond anvils

Eggert, Jon H.; Goettel, Kenneth A.; Silvera, Isaac F.
December 1988
Applied Physics Letters;12/19/1988, Vol. 53 Issue 25, p2489
Academic Journal
At pressures above one megabar (100 GPa) in high-pressure diamond anvil cell experiments the ruby fluorescence signal needed for pressure calibration is increasingly difficult to measure. A primary cause of this difficulty is the presence of an intense pressure-induced diamond fluorescence. We give a tentative identification of this pressure-induced fluorescence and report on a technique for the elimination of this fluorescence. We demonstrate that weak ruby signals, completely hidden by diamond fluorescence, are now easily measured with our technique.


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