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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 >Fabrication of two-dimensional lattices by using photosensitive sol-gel and four-beam laser interference
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Fabrication of two-dimensional lattices by using photosensitive sol-gel and four-beam laser interference

机译：利用光敏溶胶凝胶和四光束激光干涉制备二维晶格

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摘要

This work demonstrates a promising method to fabricate 2D lattices by using photosensitive sol-gel method combining with four-beam of a 350.7 nm Kr ion laser interference. Photosensitive TiO_2 gel films with chelate complexes as precursors are fabricated. The characteristics of UV and IR spectra of the films and their variations in the process of laser irradiation are investigated. The results show that the gel films had an absorption peak at about 358 nm due to the formation of chelate complex. This peak gradually decreases with irradiation in time, which indicates the photosensitive properties of the TiO_2 films. A flexible four-beam interference system is proposed. Given incident angles 20.5° and 44.5°, the lattices with pitch of 700 nm and 326 nm are fabricated, respectively. The diffraction phenomenon of the 700 nm lattices is investigated by inverse method. The results are fully consistent with the 2D crystal diffraction theory.
机译：这项工作展示了一种有前途的方法，该方法通过使用光敏溶胶-凝胶法与350.7 nm Kr离子激光干涉的四束光束相结合来制造二维晶格。制备了以螯合物为前驱体的光敏性TiO_2凝胶薄膜。研究了薄膜的紫外和红外光谱特性及其在激光辐照过程中的变化。结果表明，由于螯合物的形成，凝胶膜在约358nm处具有吸收峰。该峰随着时间的照射而逐渐减小，这表明TiO_2膜的光敏性质。提出了一种灵活的四光束干涉系统。给定入射角20.5°和44.5°，分别制作了节距为700 nm和326 nm的晶格。通过逆方法研究了700 nm晶格的衍射现象。结果与二维晶体衍射理论完全一致。

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