Spectroscopic Investigation of Cr-Doped Silicate and Aluminate Glasses

Spectroscopic properties of Cr doped silicate and aluminate glasses were compared with Cr: forsterite. Emissions were found at 970nm in silicate glass and 1170nm in aluminate glass. The 970nm emission was attributed to Cr3+4T2 and 1170nm emission to Cr4+3T2. The energy transfer from Cr3+4T1 to Cr4+3T2 and Cr4+3T1 to Cr3+4T2 were found in Cr: forsterite.