Optical Parameters of Gas Hydrates for Terahertz Applications
Optical Parameters of Gas Hydrates for Terahertz Applications
复制标题
太赫兹应用气体水合物的光学参数
DOI：
10.1007/s10762-019-00658-1
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Kawase Kodo
中科院分区：
文献类型：
--
作者：
Takeya Kei;Matsumura Keisuke;Takahashi Ryohei;Fukui Takashi;Tripathi Saroj R.;Kawase Kodo
有必要了解冰和各种气体水合物的太赫兹介电常数，以了解它们的基本化学和物理特性及其各种可能的应用。在本文中，我们比较和讨论了几种氢键固体晶体（例如冰、丙烷水合物和甲烷水合物）在太赫兹波区域的光学性质的频率依赖性和温度依赖性。发现冰和丙烷水合物的折射率相似，而甲烷水合物的折射率稍低。甲烷水合物的反射率低至冰的 15%，这种差异可能在各种应用中有用。所有样品在其折射率的温度依赖性方面表现出相同的趋势。吸收没有大的差异，并且所有样品表现出相同的频率依赖性和温度依赖性。
It is necessary to know the terahertz dielectric constants of ice and various gas hydrates to understand their fundamental chemical and physical properties and their various possible applications. In this paper, we compare and discuss the frequency dependence and temperature dependence of the optical properties of several hydrogen-bonded solid crystals such as ice, propane hydrate and methane hydrate in the terahertz wave region. The refractive indices of ice and propane hydrate were found to be similar, while that of methane hydrate was slightly lower. The reflectivity of methane hydrate was as low as 15% that of ice, and this difference may be useful in various applications. All samples showed the same tendency with respect to the temperature dependency of their refractive indices. There was no large difference in absorption, and all samples exhibited the same frequency dependence and temperature dependence.