[1] Kenyon P T, Andrews L, McCollum B C et al.. Tunable infrared solid state laser materials based Cr3+ in low ligand field. IEEE J. Quant. Electron., 1982, QE 18(8):1189～1197

[2] Reisfeld R. Potential uses of chromium (Ⅲ) doped transparent glass ceramics in tunable lasers and luminescent solar concentrators. Mater. Sci. Engng., 1985, 71(1):375～382

[3] Tanabe Y, Sugano S. On the absorption spectra of complex ions. J. Phys. Soc. Japa., 1954, 9(5):753～779

[6] Andrews L J, Lempicki A, McCollum B C. Spectroscopy and photokinetics of chromium (Ⅲ) in glass. J. Chem. Phys., 1981, 74(10):5526～5538

[7] Wojtowicz A J, Lempicki A. Luminescence of Cr3+ in mullite transparent glass Ceramics (Ⅱ). J. Lumin., 1988, 39(4):189～203

[8] Reisfeld R, Kilsilev A, Buch A et al.. Spectroscopic properties and characterization of crystalline phases. J. Non Cryst. Solids, 1987, 91(3):333～350