Browsing by Author "Parkhomenko, S. V."
Item Comparison of Nd:YAG optical ceramics produced by different sintering routes(Видавництво Львівської політехніки, 2012) Doroshenko, А. G.; Kosyanov, D. Yu.; Маteychenko, P. V.; Matveevskaya, N. A.; Parkhomenko, S. V.; Puzikov, V. M.; Tolmachev, A. V.; Yavetskiy, R. P.; Kopylov, Yu. L.; Kravchenko, V. B.Nd:YAG ceramics were fabricated by solid-state reactive sintering of commercial powders and vacuum sintering of custom made co-precipitated nanopowders. The densities, microstructure, average grain size, residual porosity, optical transmittances of the sintered ceramics were compared. Nd:YAG ceramics produced by solid-state reactive sintering possess higher transmittance compared to vacuum-sintered ceramics from coprecipitated nanopowders, which is however still lower than that of single crystals. The possible ways to improve optical quality of Nd:YAG ceramics are discussed.Item Solid-State Sintering and Luminescent Properties of Yb3+, Er3+:YAG Transparent Ceramics(2017-05-29) Vorona, I. O.; Yavetskiy, R. P.; Dobrotvorskaya, M. V.; Doroshenko, A. G.; Parkhomenko, S. V.; Tolmachev, A. V.; Gheorghe, L.; Gheorghe, C.; Hau, S.; Institute for Single Crystals of NAS of Ukraine, 60 Nauki Ave., 61001 Kharkov, Ukraine; National Institute for Laser, Plasma and Radiation Physics, Laboratory of Solid-State Quantum; Electronics, PO Box MG-36, 077125 Magurele, Bucharest, Romania