S. S. Balabanov, Yu. V. Bykov, S. V. Egorov, A. G. Eremeev, E. M. Gavrishchuk, E. A. Khazanov, I. B. Mukhin, O. V. Palashov, D. A. Permin, V. V. Zelenogorskii, “Yb:(YLa)2O3 laser ceramics produced by microwave sintering”, Kvantovaya Elektronika, 2013, Volume 43, Number 4,Pages 396

This article is cited in 21 papers

Extreme light fields and their applications

Yb:(YLa)₂O₃ laser ceramics produced by microwave sintering

S. S. Balabanov^a, Yu. V. Bykov^b, S. V. Egorov^b, A. G. Eremeev^b, E. M. Gavrishchuk^a, E. A. Khazanov^b, I. B. Mukhin^b, O. V. Palashov^b, D. A. Permin^a, V. V. Zelenogorskii^b

^a Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod
^b Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod

Abstract: The possibility of using microwave heating for sintering of optical oxide ceramics and the advantages of this method are considered. Sintering of Yb_0.1:(YLa)_1.9O₃ ceramics by heating with 24-GHz radiation is studied. The compacts for sintering are prepared from nanosized powders obtained by high-temperature synthesis from acetate-nitrates of rare-earth metals. The effect of addition of lanthanum oxide and of the uniaxial pressing conditions on the microstructure and optical transmission of ceramics is studied. Lasing at a wavelength of 1030 nm with an efficiency of 7.5 % is achieved in ceramic samples of the (Yb_0.05Y_0.1La_0.85)₂O₃ composition under pumping by a laser diode at a wavelength of 940 nm.

Keywords: laser ceramics, microwave sintering, millimetre radiation, yttrium oxide, lanthanides.

PACS: 42.55.Rz, 42.70.Hj, 81.05.Je

Received: 24.12.2012
Revised: 12.03.2013