Spectroscopic characteristic and energy levels of Cr3+ in Cr3+:KAl(MoO4)2 crystal

Unified calculation of optical and EPR spectral data for Cr3+-doped KAl(MoO4)2 crystal

“…These applications are closely linked to their spectroscopic characteristics. So, much work has been devoted to the studies of the spectroscopic properties of these crystals [4][5][6][7][8][9][10][11][12]. Among them, the optical and electron paramagnetic resonance (EPR) spectra of Cr 3+ -doped KAl(MoO 4 ) 2 crystal, a near-infrared tunable laser material, were measured by several groups [10][11][12][13].…”

“…So, much work has been devoted to the studies of the spectroscopic properties of these crystals [4][5][6][7][8][9][10][11][12]. Among them, the optical and electron paramagnetic resonance (EPR) spectra of Cr 3+ -doped KAl(MoO 4 ) 2 crystal, a near-infrared tunable laser material, were measured by several groups [10][11][12][13]. From these measurements [10][11][12][13], nine optical band positions (or crystal energy levels) and three EPR (or spin-Hamiltonian) parameters (g factors g || , g \ and zero-field splitting D) attributed to Cr 3+ occupying the trigonal (D 3d ) Al 3+ site of KAl(MoO 4 ) 2 crystal were reported.…”

Exchange charge model and analysis of the microscopic crystal field effects in KAl(MoO4)2:Cr3+

“…The hosts with pronounced electron-vibrational interaction (EVI) between the impurities and the crystal lattice are of special interest, since the splitting of the orbitally degenerated states of impurity ions can be enhanced significantly resulting in efficient broadening of the emission and absorption bands. Among such materials, the molybdates with the general formula M I M III (MoO 4 ) 2 (where M I ¼Na, K, Rb, Cs; M III ¼Al, In, Sc) were regarded as promising materials for tunable laser applications by doping with Cr 3 þ ions [2][3][4][5][6][7][8]. As a member of the M I M III (MoO 4 ) 2 compound family, KAl(MoO 4 ) 2 belongs to P3 m1 space group [9] (no.…”

“…Recently the experimental absorption and luminescence spectra of Cr 3 þ ions in a trigonal crystal KAl(MoO 4 ) 2 were reported [3,4,[6][7][8]. Also, the theoretical calculations of energy spectra and/ or spin-Hamiltonian parameters of Cr 3 þ doped KAl(MoO 4 ) 2 crystal have been performed [10][11][12].…”

Growth and spectroscopic characteristics of Cr3+:CsAl(MoO4)2 crystal

“…Recently double metals molybdate and tungstate with a general formula M I M III (M VI O 4 ) 2 (where M I = Na, K, Rb, Cs, M III = Al, In, Sc and M VI = Mo, W)are gaining attentions because their interesting chemical and physical properties. The Cr 3+ -doped M I M III (M VI O 4 ) 2 materials have currently receiving a great deal of attention due to their interesting properties in tunable laser applications [6][7][8][9][10][11][12][13][14][15][16]. CsAl(MoO 4 ) 2 is a member of this family of materials with P3m1 space group and cell parameters a = 5.551(1) Å, c = 8.037(2) Å [17].…”