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Garnet infrared windows

delete2025-05-05
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PRE
AI
B
Brahim Akdim *
J
John W. Drazin
A
Andrew Schlup
R
Randall S. Hay
S
Seamus McGarvey
A
Augustine Urbas
J
Jared H. Delcamp
DOI:10.1111/jace.20606delete
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摘要

摘要

En 中文
石榴石及其结构相似的立方锑酸盐的红外(IR)透明度通过密度泛函理论(DFT)计算确定。布里渊区中心的最高频率通过乘以2的因子来确定红外截止波长。还进行了体模量和带隙的DFT计算。计算结果与从粉末和块状样品的数字化傅里叶变换红外(FTIR)光谱中确定的红外透明度进行了比较。DFT计算预测的趋势与从FTIR和块状光谱确定的结果一致。对多晶Y₃Al₅O₁₂(YAG)和单晶Gd₃Ga₅O₁₂(GGG)石榴石在室温至1500摄氏度范围内的红外透射率进行了测量。从文献数据中收集了多种石榴石组分的光学、结构、热力学和热物理性质,并在可能的情况下与DFT计算结果进行了比较。讨论了具有最佳窗口性能组合的石榴石。
Keyword:
antimonates
DFT
garnets
infrared
phonons
transparency
windows

期刊

Journal of the American Ceramic Society 封面图
Journal of the American Ceramic Society
IF:
3.8
论文数:
1.7W
被引数:
5.4W

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