Optical Spectroscopy of MgGa2O4:Fe3+

Fluorescence and excitation data for MgGa 2 O 4 :Fe 3+ are presented. We have produced by solid state reactions a compound in which a near infrared emission broadband at 77 K as well as at room temperature was observed. The emission is attributed to the spin-forbidden 4 T 1 ( 4 G) → 6 A 1 ( 6 S) electronic transition of Fe 3+ ions in tetrahedral sites.