CaF2:Yb laser ceramics

被引：92

作者：

Akchurin, M. Sh. ^{[1
]}

Basiev, T. T. ^{[2
]}

Demidenko, A. A. ^{[3
]}

Doroshenko, M. E. ^{[2
]}

Fedorov, P. P. ^{[2
]}

Garibin, E. A. ^{[3
]}

Gusev, P. E. ^{[3
]}

Kuznetsov, S. V. ^{[2
]}

Krutov, M. A. ^{[3
]}

Mironov, I. A. ^{[3
]}

Osiko, V. V. ^{[2
]}

Popov, P. A. ^{[4
]}

机构：

[1] Inst Crystallog RAS, Moscow, Russia

[2] Gen Phys Inst RAS, Moscow, Russia

[3] INCROM Ltd, St Petersburg, Russia

[4] Bryansk State Univ, Bryansk, Russia

来源：

OPTICAL MATERIALS | 2013年 / 35卷 / 03期

关键词：

Laser ceramics; Fluorite; Calcium-ytterbium fluoride; Hot-forming; Hot-pressing; THERMAL-CONDUCTIVITY; FRACTURE-TOUGHNESS; FLUORIDE CERAMICS; CALCIUM-FLUORIDE; SINGLE-CRYSTALS; SOLID-SOLUTIONS; RANGE; NANOCERAMICS;

D O I：

10.1016/j.optmat.2012.09.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CaF2:Yb fluoride laser ceramics, prepared by hot-forming, exhibit the same optical properties as starting single crystals. Slope efficiency of the Ca0.95Yb0.05F2.05 is equal to 35% in the pulsed mode of laser operation. Decrease of ytterbium concentration in CaF2:Yb samples down to 3 mol.% resulted in the essential improvement of Ca0.97Yb0.03F2.03 thermal conductivity from 3.5 to 4.5 W/m K, but slightly decreased (down to 30%) slope efficiency of the samples under both pulsed and CW mode of operation. Alternative hot-pressing synthesis of CaF2:Yb fluoride laser ceramics provided materials with superior mechanical properties (microhardness H = 3.2 GPa and fracture toughness K-1C = 0.65 MPa m(1/2)) in comparison with hot-formed and/or single crystal CaF2:Yb specimens. For the first time, lasing has been observed for the novel aforementioned hot-pressed CaF2:Yb ceramics. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：444 / 450

页数：7

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