Crystal growth, spectral properties and crystal field analysis of Cr3+:MgWO4

Synthesis, morphology and spectroscopic properties of red-luminescent rhombohedral YOF: Yb3+, Er3+ powders

“…24,25 Summarizing the results obtained by Rietveld structure renement and XPS analysis, it could be concluded that samples calcinated at 400 C, 500 C and 600 C are rhombohedral YOF: Yb 3+ , Er 3+ . That's to say, the distribution of Yb and Er ions in YOF is inhomogeneous.…”

Crystal growth, spectroscopic properties and energy levels of Cr3+:Li2Mg2(WO4)3: a candidate for broadband laser application

“…The growth and optical characterization of large size Cr 3+ :MgMoO 4 and Cr 3+ :MgWO 4 crystals have been investigated in our laboratory. [26][27][28] Both of them exhibit strong and broadband emission with large value of emission cross-section and FWHM. Cr 3+ ion in MgMoO 4 and MgWO 4 crystal is accommodated in lattice site with relative weak crystal eld strength.…”

Achieving the potential multifunctional near-infrared materials Ca3In2−xGaxGe3O12:Cr3+using a solid state method

“…4(e) ), the relative positions of 4 T 1 4 F, 4 T 2 4 F and 2 E( 2 G) energy levels vary with the D q / B value. According to the crystal field theory, the values of D q / B can be determined by the following equations calculation: 43 E ( 4 T 2 ) = 10 D q Δ E = E ( 4 T 1 ) − E ( 4 T 2 ) where D q is the crystal field intensity, B is the Racha parameters, Δ E represents the energy difference between 4 T 1 and 4 T 2 , and is determined by the peak positions of 4 T 1 4 F and 4 T 2 4 F. The final results are shown in Table 2 , as the doping concentration increases, D q / B gradually increases. From Fig.…”