Fabrication of one-dimensional SWS on bismuth borate glass by glass-imprinting method
Fabrication of one-dimensional SWS on bismuth borate glass by glass-imprinting method
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玻璃压印法在硼酸铋玻璃上制备一维SWS
DOI：
10.1117/12.841441
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
J. Nishii
中科院分区：
文献类型：
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作者：
N. Yamashita;T. Suetsugu;N. Kitamura;K. Fukumi;J. Nishii
采用玻璃印迹法在玻璃板上制备了一维周期亚波长结构（SWS）。研究了硼酸锂铋镓玻璃的热学和光学性质，以开发适合玻璃印迹法的玻璃。发现折射率和吸收边能对玻璃成分具有可加性，氟原子取代氧原子降低了变形温度，提高了紫外区的透明度。该玻璃在587 nm处折射率大于1.80，在400 nm处透光率大于80%（厚度为3 mm），变形温度低于470℃。通过玻璃印迹法将SiC模具上周期为300 nm的一维SWS转移到玻璃表面，由于形成双折射导致相位延迟。
A one-dimensional periodic sub-wavelength structure (SWS) was fabricated on a glass plate by a glass-imprinting method. Thermal and optical properties of lithium bismuth gallium borate glasses were investigated for the development of glass suitable for the glass-imprinting method. It was found that refractive index and absorption edge energy showed additivity for glass composition and that the substitution of fluorine atoms for oxygen atoms reduced deformation temperature and increase transparency near uv region. The glass had a refractive index higher than 1.80 at 587 nm, internal transmittance higher than 80% (3 mm in thickness) at 400 nm, and deformation temperature lower than 470°C was obtained. A one-dimensional SWS with a period of 300 nm on an SiC mold was transferred to the glass surface by the glass-imprinting method, which showed the phase retardation due to form birefringence.