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Atmospheric and Oceanic Optics

2016 year, number 2

Nd:YAG/Cr:YAG composite laser ceramics

S.G. Garanin1, V.V. Osipov2, V.A. Shitov2, V.I. Solomonov2, K.E. Lukyashin2, A.V. Spirina2, R.N. Maksimov2,3, E.V. Pozdnyakov1
1Russian Federal Nuclear Center - All-Russian Research Institute of Experimental Physics, 607188, Sarov, Nizhny Novgorod region, Muzrukov Ave, 10
2The Institute of Electrophysics of the Ural Division of the Russian Academy of Sciences, 620016, 106 Amundsen St., Ekaterinburg, Russia
3Ural Federal University named after the first President of Russia B.N. Yeltsin, 620083, 51 Lenina, Ekaterinburg, Russia
Keywords: керамика, лазер, композит, прозрачность, синтез, Nd:YAG, Cr:YAG, тонкий диск, методика, ceramics, laser, composite, transmittance, synthesis, Nd:YAG, Cr:YAG, thin disk, method


This work reports the fabrication of composite transparent ceramics consisting of Nd:YAG as the central part and Cr4+:YAG as the edge cladding. The central part of ceramics was shaped into 14-mm-diameter disk or 11-mm-side square and an outer diameter of the edge cladding was 18 mm or 23 mm, respectively. The central part of ceramics exhibited an optical transmittance of  84% at a wavelength of 1.06 µm. The concentration of Cr4+ in Cr4+:YAG ceramics with three different compositions was evaluated using measured transmission spectra and known absorption cross sections. Taking into account the infeasibility condition for self-excitation, the optimal composition of edge cladding was estimated to be 2.5 mol.% Cr + 0.5 mol.% Ca + 97 мол.% YAG.