Ultra-violet optical properties of potassium fluoride
Ultra-violet optical properties of potassium fluoride
复制标题
氟化钾的紫外光学性质
DOI：
--
复制
发表时间：
1966
期刊：
影响因子：
--
通讯作者：
H. J. Lempka
中科院分区：
文献类型：
--
作者：
D. Roessler;H. J. Lempka
本文测量了氟化钾单晶在远紫外6-24 eV范围内的正入射反射光谱。通过Kramers-Kronig变换分析数据以产生介电参数n2 - k2和2nk。计算的能量损失大致类似于直接测量的工作最好的特征电子能量损失。价电子的作用进行了讨论，在它们的贡献所观察到的光学性质和可能的等离子体共振。所观察到的结构进行了讨论的激子状态和带间跃迁。
The reflection spectrum at normal incidence of monocrystalline potassium fluoride has been measured in the range 6-24 eV in the far ultra-violet. The data were analysed by means of a Kramers-Kronig transform to generate the dielectric parameters n2 - k2 and 2nk. Computed energy losses broadly resemble those measured directly in the work of Best on characteristic electron energy losses. The role of the valence electrons is discussed in terms of their contribution to the observed optical properties and possible plasma resonances. The observed structure is discussed in terms of exciton states and interband transitions.