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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Optimization of tunable laser glasses with the aid of dielectric relaxation and adsorption measurements
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Optimization of tunable laser glasses with the aid of dielectric relaxation and adsorption measurements

机译：借助介电弛豫和吸附测量来优化可调谐激光眼镜

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The recently developed tunable dye lasers in the visible are obtained by incorporation of stable laser dyes into glasses prepared by the sol-gel method. In order that the lasers be photostable and more efficient it is essential that the dye molecules penetrate into the glass matrices in a unimolecular form and be protected from the surroundings. In this respect, the size of the pores and their distribution in the glass are of major importance. In this paper the influence of the various catalysts on the porosity of the glasses is presented. The pore sizes, their surface area, pore volume, pore size distribution and glass effective density are presented, and the solid state tunable lasers prepared under the optimal conditions are demonstrated. The results obtained by the conventional adsorption methods (water, nitrogen adsorption) and mercury porosimetry are compared with dielectric measurements and the conclusion is that the latter provide information about charge movement in glasses with the smallest pores. The water vapor from the atmosphere is adsorbed within the smallest pores in a monolayer resulting in the formation of dipoles, that can be detected by dielectric measurements. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 30]
机译：通过将稳定的激光染料掺入通过溶胶-凝胶法制备的玻璃中，可以得到可见光中最新开发的可调染料激光。为了使激光具有光稳定性和更高的效率，必须使染料分子以单分子形式渗透到玻璃基质中，并使其免受周围环境的影响。在这方面，孔的尺寸及其在玻璃中的分布是最重要的。本文提出了各种催化剂对玻璃孔隙率的影响。介绍了孔径，它们的表面积，孔径，孔径分布和玻璃有效密度，并展示了在最佳条件下制备的固态可调激光器。将通过常规吸附方法（水，氮吸附）和水银孔隙率法获得的结果与电介质测量结果进行比较，得出的结论是，后者可提供有关孔最小的玻璃中电荷运动的信息。来自大气的水蒸气被吸附在单层的最小孔中，导致形成偶极子，可以通过电介质测量来检测。 （C）2002 Elsevier Science B.V.保留所有权利。 [参考：30]

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