低温下熔融石英的折射率
Refractive Indices of Fused Silica at Low Temperatures.
作者信息
Waxier R M, Cleek G W
机构信息
Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234.
出版信息
J Res Natl Bur Stand A Phys Chem. 1971 Jul-Aug;75A(4):279-281. doi: 10.6028/jres.075A.026.
The refractive indices of a commercial fused silica specimen were determined at ten wavelengths from 404.7 to 667.8 nm over the temperature range from -200 to +20 °C. The data are needed for the design of optical systems for space applications where the extremes of temperature are encountered. Values of the thermal coefficient of refractive index were found to be positive and varied from about 9 × 10/°C at room temperature to 3 × 10/°C at liquid nitrogen temperature. The data also showed that there is an increase in dispersion with increasing temperature. These results bear out the predictions of the theory for the thermo-optic behavior of solids.
在-200至+20°C的温度范围内，对一个商用熔融石英样品在404.7至667.8 nm的十个波长下测定了折射率。对于遇到极端温度的空间应用光学系统设计而言，需要这些数据。发现折射率的热系数值为正，在室温下约为9×10⁻⁶/°C，在液氮温度下为3×10⁻⁶/°C。数据还表明，随着温度升高，色散增加。这些结果证实了关于固体热光行为理论的预测。
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