Optical spectroscopy and laser parameters of GdVO4:Er3+

Crystal structure and optical spectra of LiLa9(SiO4)6O2 crystals activated with Er3+

“…They are assigned to the ( 2 H 11/2, 4 S 3/2 )-4 I 15/2 and 4 F 9/2 -4 I 15/2 transitions, respectively. In consequence of the lattice disorder, they are much broader than those usually observed in the spectra of Er 3+ -doped ordered crystals [7]. The RT green ( 2 H 11/2 , 4 S 3/2 )-4 I 15/2 emission can also be excited through an upconversion process upon 799 nm pumping in correspondence of the 4 I 9/2 level Fig.…”

“…The details of the structure determination will be reported in a future paper. The experimental setup used for the measurements of the absorption and luminescence spectra has been described in previous papers [6,7].…”

Optical spectra of Dy3+-doped GdVO4 and Ca3Sc2Ge3O12 crystals and evaluation of the Ω2/Ω6 ratio as a quality factor for the classification of Dy3+-activated crystalline hosts

“…Single crystals of GVO:Dy 3þ (3%) and CaSGG:Dy 3þ (9%) were grown by the flux growth method using procedures reported in previous papers [7,8]. GdVO 4 is tetragonal, space group I4 1 /amd and lattice parameters a ¼ 7.220 Å and c ¼ 6.352 Å.…”

Spectroscopic investigation of Er3+-doped (Gd0.7Y0.3)2SiO5 single crystal for potential application in 1.5μm laser

“…Furthermore, it is should be noted that a common feature of these systems is a dominant value of the˝2 parameter. This peculiarity, encountered in luminescence materials containing erbium ions, is determined by a high intensity of the 4 I 15/2 → 2 H 11/2 hypersensitive absorption transition [16]. Then the˝t parameters were utilized to predict emission properties of the Er 3+ :G 0.7 Y 0.3 SO Table 2 Values of predicted radiative transition rates of ed and md radiation, luminescence branching ratios and radiative lifetime of excited states of Er 3+ in G0.7Y0.3SO crystal.…”