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ABSORPTION MAPPING FOR CHARACTERIZATION OF GLASS SURFACES

机译:吸收映射表征玻璃表面

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The surface quality of bare substrates and preparation procedures take on an important role in optical coating performances. The most commonly used techniques of characterization generally give information about roughness and local defects. A photothermal deflection technique is used for mapping surface absorption of fused-silica and glass substrates. We show that absorption mapping gives specific information on surface contamination of bare substrates. We present experimental results concerning substrates prepared by different cleaning and polishing techniques. We show that highly polished surfaces lead to the lowest values of residual surface absorption. Moreover the cleaning behavior of surfaces of multicomponent glasses and their optical performance in terms of absorption are proved to be different from those of fused silica. [References: 17]
机译:裸露基材的表面质量和制备程序在光学涂层性能中起着重要作用。最常用的表征技术通常会提供有关粗糙度和局部缺陷的信息。光热偏转技术用于绘制熔融石英和玻璃基板的表面吸收图。我们表明吸收图谱给出了裸露基材表面污染的具体信息。我们介绍了有关通过不同清洁和抛光技术制备的基材的实验结果。我们表明高度抛光的表面导致最低的残留表面吸收值。此外,事实证明,多组分玻璃表面的清洁行为及其在吸收方面的光学性能不同于熔融石英。 [参考:17]

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