Ceramics With Disordered Structure of the Crystal Field / Bagaev S. N.,Osipov V. V.,Kuznetsov V. L.,Solomonov V. I.,Shitov V. A.,Maksimov R. N.,Orlov A. N.,Komarskyi A. A. // RUSSIAN PHYSICS JOURNAL. - 2014. - V. 56, l. 11. - P. 1219-1229.

ISSN/EISSN:

1064-8887 / 1573-9228

Type:

Article

Abstract:

{[}(Re (x) Lu (y) Y1-x-y )(2)O-3](1-z) (AO(2)) (z) laser ceramics have been synthesized, where Re is the rare earth element Nd3+ or Yb3+, A is the heterovalent ion Zr4+ or Hf4+, x = 1-5 mole\%, y = 0-24 mole\%, z = 0-12 mole\%, by two methods: 1) from a mixture of nanopowders of the individual oxides and 2) from nanopowders of the given chemical composition. It is shown that the best characteristics are possessed by ceramics obtained using the second method. In the ceramics doped with zirconium and hafnium there takes place a broadening of the emission bands on the laser transitions of the neodymium ions of up to 36 nm, and of the ytterbium ions, of up to 75 nm. The effective lifetimes of the F-4(3/2) level of the neodymium ion and of the F-2(5/2) level of the ytterbium ion have been measured. It is shown that the effective lifetime of the F-4(3/2) level of the neodymium ion is decreased by 5-6\% when the yttrium oxide is doped with 12 mole\% ZrO2 and is increased by roughly 30\% when it is doped with 10 mole\% HfO2. Quenching of luminescence of the neodymium ion is due to a Forster mechanism of decay of the F-4(3/2) level of Nd3+. In this case, one of the channels of nonradiative population of this level is supported by the dipole-dipole interaction with the ions Zr3+ and Hf3+. The effective lifetime of the F-2(5/2) level of the ytterbium ion in ceramics of such composition does not vary within the limits of measurement error.

Author keywords:

laser ceramics; high-strength ceramics. OPTICAL-PROPERTIES; FABRICATION; LASER; Y2O3

DOI:

10.1007/s11182-014-0165-2

Web of Science ID:

ISI:000334077500002

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAR
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
EISSN	1573-9228
Keywords-Plus	OPTICAL-PROPERTIES; FABRICATION; LASER; Y2O3
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
Author-Email	osipov@iep.uran.ru
ResearcherID-Numbers	Komarskiy, Alexander/L-5353-2014 Bagayev, Sergei/R-7942-2016 Maksimov, Roman/R-5876-2016
ORCID-Numbers	Komarskiy, Alexander/0000-0002-1102-8282 Bagayev, Sergei/0000-0003-4470-2779
Funding-Acknowledgement	RAS {[}12-P-2-1011]; Ural Branch of the RAS {[}12-S-2-1018]; RFBR {[}11-08-0005a]; Ural Federal University
Funding-Text	This work was carried out with the partial support of RAS Presidium Program No. 12-P-2-1011, the Presidium Program of the Ural Branch of the RAS No. 12-S-2-1018, RFBR Project No. 11-08-0005a, and also with the partial financial support for young scientists of Ural Federal University within the framework of program of UrFU development.
Number-of-Cited-References	19
Usage-Count-Since-2013	10
Journal-ISO	Russ. Phys. J.
Doc-Delivery-Number	AE6CW