科研之友
微信
新浪微博
Facebook
分享链接
摘要
Optical coatings are designed and produced for the multichannel scanning radiometer meteorological space instrument operating in the spectral range 6.3similar to7.6 mum. First the choice of substrates and layers materials is discussed. Then the substrate temperature dependent effects of three different Te-enriched PbTe single layers on the dispersion and absorption characteristics and carrier concentration are studied. The experimental results demonstrate that the performance of the coating made using PbTe + 0.3 at. % Te material is better than that of the others. Finally, details of the spectral design and manufacture of such a filter which meets the demanding bandwidth and transparency requirements of the application are presented. This design model is based on the optical and semiconductor properties of a multilayer filter containing PbTe layer material in combination with the dielectric dispersion of ZnSe deposited on the a Ge substrate. Comparisons between the computed spectral performance of the model and spectral measurements from manufactured coatings over a wavelength range of 6.3similar to7.6 mum are presented.
- 出版日期2002-4
- 单位中国科学院上海技术物理研究所; 复旦大学
