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首页> 外文期刊>Optical Materials >The Czochralski growth and characterization of a dual-wavelength Raman gain crystal Sr(MoO4)(x)(WO4)(1-x)
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The Czochralski growth and characterization of a dual-wavelength Raman gain crystal Sr(MoO4)(x)(WO4)(1-x)

机译：双波长拉曼增益晶体Sr（MoO4）（x）（WO4）（1-x）的Czochralski生长和表征

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摘要

Crack-free Sr(MoO4)(x)(WO4)(1-x) (x = 0.3, 0.45, 0.7) solid solution single crystals with high optical quality and large dimensions have been successfully grown by the Czochralski method for the first time. The unit cell parameters and the density change linearly on the composition x that all obey Vegard's law, indicating an ideal isomorphous substitution of W6+ by Mo6+. The refractive index functions and the average thermal expansion coefficients are precisely measured. As the concentration of [MoO4](2-) increases, the refractive indices have a monotonous increasing trend, while the thermal expansion coefficients follow a parabolic trend. In the pontaneous Raman spectra, the double-mode behavior of v(1)(A(g)) band has been observed. The Raman shifts at 886 and 921 cm(-1) with narrow line widths and high peak intensities indicate Sr(MoO4)(0.45)(WO4)(0.55) crystal a potential uncontested dual-wavelength Raman gain medium. (C) 2015 Elsevier B.V. All rights reserved.
机译：通过Czochralski方法成功地成功生长了具有高光学质量和大尺寸的无裂纹Sr（MoO4）（x）（WO4）（1-x）（x = 0.3，0.45，0.7）固溶单晶。晶胞参数和密度在均符合维加德定律的组成x上线性变化，表明W6 +被Mo6 +理想取代。精确测量折射率函数和平均热膨胀系数。随着[MoO4]（2-）的浓度增加，折射率具有单调增加的趋势，而热膨胀系数遵循抛物线趋势。在自发的拉曼光谱中，已观察到v（1）（A（g））波段的双模行为。拉曼位移在886和921 cm（-1）处具有窄的线宽和高的峰强度，表明Sr（MoO4）（0.45）（WO4）（0.55）晶体是潜在的无可争议的双波长拉曼增益介质。 （C）2015 Elsevier B.V.保留所有权利。

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