Optical properties and laser performance of neodymium doped scheelites CaWO4 and NaGd(WO4)2

Laser crystals and ceramics: recent advances

“…There are good reasons to believe that progress in the basic research and developments considered and briefly mentioned above will lead not only to improvements in the understanding of crystalline lasers but will also stimulate research into novel laser technologies. CaWO4 300 ∼ 0.81 [477] SrAl11O19:MgO 300 ∼ 0.81 [478] Y2O3 (ceramic) 300 ∼ 0.807 [290] β-YAl3(BO3)4 300 ∼ 0.808 [421,479,480] www.lpr-journal.org h) The composition of crystal was Cd0.55Mn0.45Te [603]. i) "Fibre"-like laser as well [614].…”

Structural, spectroscopic, and tunable laser properties ofYb3+-dopedNaGd(WCascales1, Serrano2, Esteban‐Betegón3 et al. 2006Phys. Rev. B1424810View full textAdd to dashboardCite

“…These results are consistent with the well known Na and W volatilities during the growth process. The compounds formed after resolidification of the vapors emitted by the melt were identified as a sodium tungsten bronze, i.e., a phase resulting from the intercalation of Na in WO 3 , Na x WO 3 , x Ͻ 1. 22 iv͒ The unit cell parameters of Yb:NaGdW ͑x =0¯0.25͒ crystals decrease with the Yb 3+ concentration as shown in Fig.…”

“…2 The same host-dopant combination was also the first one of that kind for which diodepumped room temperature continuous-wave ͑CW͒ operation was reported more than 30 years later. 3 In 2004 we achieved for the first time lasing of the Yb 3+ ion in such type of disordered crystal, using again NaGdW as host. 4,5 Soon after that, Yb 3+ laser operation was reported in several related DT and DM hosts, namely NaLa͑WO 4 ͒ 2 , 6,7 NaLa͑MoO 4 ͒ 2 , 6,8,9 and LiGd͑MoO 4 ͒ 2 , 10 see Ref.…”

Optical absorption of divalent metal tungstates: Correlation between the band-gap energy and the cation ionic radius

“…Their use in the detectors of the Large Hadron Collider at CERN [7], as laser-host materials [8], and in other optoelectronic devices like eye-safe Raman lasers [9] also created great interest on them. For all these applications an accurate knowledge of the band-gap energy (E g ) of tungstates is needed.…”