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Single-step UV recording of sinusoidal surface gratings in hybrid solgel glasses

机译:混合溶胶凝胶玻璃中正弦表面光栅的单步紫外记录

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摘要

Efficient surface gratings are UV imprinted in an acrylate-rich hybrid solgel glass. Structural changes occurring in the material upon exposure to light are investigate. Large amplitude modulation (700 nm) and low surface roughness (0.2 nm) were measured by atomic forece microscopy. Diffraction efficiencies were found to be close to theoretical predictions. The method of fabrication does not involve any etching step, and an all-UV process is proposed. The gratings are resistant to temperature and to solvent effects. These devices could have useful applications in sensor and spectroscopic devices.
机译:高效的表面光栅被紫外线压印在富含丙烯酸酯的混合溶胶凝胶玻璃中。研究暴露于光时材料中发生的结构变化。通过原子力显微镜测量了大幅度调制(700 nm)和低表面粗糙度(0.2 nm)。发现衍射效率接近理论预测。该制造方法不包括任何蚀刻步骤,并且提出了全紫外线工艺。光栅耐温度和溶剂作用。这些设备可能在传感器和光谱设备中具有有用的应用。

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