Fabrication and Optical Properties of High‐Performance Polycrystalline Nd:YAG Ceramics for Solid‐State Lasers

Journal of the American Ceramic Society - Tập 78 Số 4 - Trang 1033-1040 - 1995
Akio Ikesue1,2, Toshiyuki Kinoshita2, Kaori Kamata3,1, Kunio Yoshida4
1*Member, American Ceramic Society.
2Technical Research Center, Krosaki Corporation, Kitakyushu City 806, Japan
3Department of Material Science and Technology, Nagaoka University of Technology, Nagaoka City 904–21, Japan
4Institute of Laser Engineering, Osaka Institute of Technology, Osaka City 535, Japan

Tóm tắt

Transparent polycrystalline YAG with nearly the same optical characteristics as those of a single crystal were fabricated by a solid‐state reaction method using high‐purity powders (>99.99 wt% purity). The average grain size and relative density of the 1.1 at.% Nd:YAG ceramics obtained were about 50 μm and 99.98%, respectively. An oscillation experiment was performed on a cw laser by the diode laser excitation system using the fabricated ceramics. The experimental results indicated an oscillation threshold and a slope efficiency of 309 mW and 28%, respectively. These values were equivalent or superior to those of the 0.9 at.% Nd:YAG single crystal fabricated by the Czochralski method.

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Tài liệu tham khảo

10.1038/187493a0

10.1103/PhysRevLett.4.564

10.1364/JOSAB.3.000125

10.1109/3.212

10.1109/3.213

10.1063/1.1753928

Greskovich C., 1973, Fabrication of Transparent ThO2‐Doped Y2O3, Am. Ceram. Soc. Bull., 52, 473

10.1063/1.1662008

10.1063/1.1663077

10.1016/0025-5408(84)90245-9

10.1016/0167-2738(85)90027-X

10.1063/1.345224

A.Ikesue I.Furusato andK.Kamata; to be submitted toJ. Jpn. Ceram. Soc.

Smethurst E., 1972, The Preparation of Transparent Magnesia Bodies I. By Hot‐Pressing, II. By Sintering, Trans. Br. Ceram. Soc., 71, 45

Kanzaki S., 1978, Variation of Transparency and Microstructure on Annealing of Hot‐Pressed Mg‐Al Spinel Ceramics, J. Jpn. Ceram. Soc., 86, 485

10.1016/0025-5408(69)90001-4

10.1111/j.1151-2916.1967.tb15132.x

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Thông tin xuất bản

Journal of the American Ceramic Society

Tập 78 Số 4

1033-1040

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