Characterization of Micro-Powders for the Fabrication of Compression Molded THz Lenses
Characterization of Micro-Powders for the Fabrication of Compression Molded THz Lenses
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DOI：
10.1007/s10762-011-9806-5
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发表时间：
2011-07-01
影响因子：
2.9
通讯作者：
Wiesauer, Karin
中科院分区：
文献类型：
--
作者：
Scherger, Benedikt;Wietzke, Steffen;Wiesauer, Karin
我们研究了不同的微粉，可用作太赫兹透镜的压缩成型制造的基础材料。对于这种应用，需要具有非常弱的THz吸收和低色散的材料。通过测量太赫兹吸收系数和折射率的颗粒压制从不同的微粉，我们确定了几种材料，非常适合于制造的压缩成型太赫兹透镜（CML）。此外，样品覆盖了相当大范围的折射率，这将允许制造具有用于同一透镜设计的不同焦距的CML。
We investigate different micro-powders that can be used as base materials for THz lenses fabricated by compression molding. For this application materials with a very weak THz absorbance and low dispersion are required. By measuring the THz absorption coefficient and refractive index of pellets pressed from the different micro-powders, we identify several materials that are well suited for the fabrication of compression molded THz lenses (CMLs). In addition, a considerable range of the refractive index is covered by the samples, which will allow for the fabrication of CMLs with different focal lengths for one and the same lens design.