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首页> 外文期刊>Optical Materials >Effect of substituting Al_2O_3 and ZrO_2 on thermal and optical properties of high refractive index La_2O_3-TiO_2 glass system prepared by containerless processing
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Effect of substituting Al_2O_3 and ZrO_2 on thermal and optical properties of high refractive index La_2O_3-TiO_2 glass system prepared by containerless processing

机译:替代Al_2O_3和ZrO_2对无容器加工高折射率La_2O_3-TiO_2玻璃体系热光学性能的影响。

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摘要

La_4Ti_9O_(24) glass and La_2O_3-TiO_2-Al_2O_3 and La_2O_3-TiO_2-ZrO_2 glass systems were prepared by container-less processing. The thermal stability and refractive indices of these glasses were investigated. It was found that these glasses had high refractive indices over 2.29 and high glass transition temperatures. The effects of substituting Al_2O_3 or ZrO_2 for La_2O_3 or TiO_2 in La_4Ti_9O_(24) glass on the refractive index is discussed by analyzing the optical parameters of the glasses. The high refractive index of these glasses was due to their large oxygen packing densities and significant electronic polarizabilities of oxygen ions. The substitution of Al_2O_3 and ZrO_2 was effective for the refractive indices and wavelength dispersions.
机译:通过无容器加工制备了La_4Ti_9O_(24)玻璃以及La_2O_3-TiO_2-Al_2O_3和La_2O_3-TiO_2-ZrO_2玻璃体系。研究了这些玻璃的热稳定性和折射率。发现这些玻璃具有超过2.29的高折射率和高玻璃化转变温度。通过分析玻璃的光学参数,讨论了用Al_2O_3或ZrO_2代替La_4Ti_9O_(24)玻璃中的La_2O_3或TiO_2对折射率的影响。这些玻璃的高折射率归因于其大的氧堆积密度和氧离子的显着电子极化率。 Al_2O_3和ZrO_2的取代对于折射率和波长色散有效。

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