High quality Y3Al5O12 doped transparent ceramics for laser applications, role of sintering additives

5th International Symposium on Coherent Optical Radiation of Semiconductor Compounds and Structures

Kaminskii, A.A.^1 ; Balashov, V.V.^2 ; Cheshev, E.A.^3,4 ; Kopylov, Yu L.^2 ; Koromyslov, A.L.^1 ; Krokhin, O.N.^3,4 ; Kravchenko, V.B.^2 ; Lopukhin, K.V.^2 ; Shemet, V.V.^2 ; Tupitsyn, I.M.^4

Shubnikov Crystalography Institute RAS, 59 Leninsky pr., Moscow

119333, Russia^1

Kotelnikov FIRE RAS, 1 Vvedensky Sq., Fryazino

141120, Russia^2

P.N. Lebedev Physical Institute of the RAS, 53Leninsky pr., Moscow

119991, Russia^3

National Research Nuclear University MEPhI, 31 Kashirskoye shosse, Moscow

115409, Russia^4

关键词: Composition layers;    Laser ceramics;    Laser parameters;    Optical qualities;    Optical transmittance spectrum;    Optimal sintering;    Sintering additives;    Transparent ceramic;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/740/1/012009/pdf
DOI  :  10.1088/1742-6596/740/1/012009

来源: IOP

【 摘 要 】

SiO2, ZrO2, B2O3and MgO oxides and their combinations were used as sintering aids for preparation of yttrium aluminum garnet (YAG) ceramics doped by Nd2O3, Er2O3, Ho2O3, Tm2O3and Yb2O3. The influence of these additives on optimal sintering temperature, grain growth, volume of residual pores and optical quality of the ceramics were investigated. The best combination of the sintering additives was found and high quality samples of YAG:Nd (1 at.%) ceramics were obtained. The original method of laser optical quality characterization of ceramics was developed and tested. The main laser parameters of YAG:Nd (1 at.%) ceramics samples are measured and compared with the best well known laser ceramics. The samples of YAG:RE (RE- Er2O3, Ho2O3, Tm2O3and Yb2O3) ceramics are obtained, and their optical transmittance spectra are measured. Composite structures of YAG:Yb (5 at.%) - YAG were obtained by the simplest method of successive joint compaction of different composition layers.