太阳望远镜高分辨率宽光谱法布里玻罗干涉仪关键技术研究

项目名称： 太阳望远镜高分辨率宽光谱法布里玻罗干涉仪关键技术研究

项目编号： No.U1231112

项目类型： 联合基金项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 朱日宏

作者单位： 南京理工大学

项目金额： 54万元

中文摘要： 超窄带滤光器是太阳望远镜的核心单元，可以在光谱维实现对图像数据的精细“切片”，法布里玻罗干涉仪(FPI)是实现这一功能最有效的手段。本项目以近红外FPI为研究对象，在其数学模型的基础上着重研究制约其性能的关键技术，完善FPI超窄带滤波理论，并就其关键技术开展实验研究。内容包括：研究FPI数学模型，建立技术参数与性能参数之间联系，为实现FPI提供理论基础；研究同步高精度绝对检验，为FPI腔体面形的高精度加工提供检测方法，确保FPI透射光谱高分辨率；研究以ZnS和Na3AlF6交替错层膜系结构为基础的低应力、高均匀性多层膜镀制方法，在表面宽光谱高反特性的基础上促使FPI实现近红外宽光谱高透过及高锐度光谱曲线；研究基于电容位移传感器的三位一体PZT实时高精度闭环控制技术，建立PZT驱动控制与FPI光谱透过曲线动态平移之间的模型关系，实现FPI宽光谱快速、稳定扫描。

中文关键词： 法布里玻罗干涉仪；压电陶瓷；光谱成像；；

英文摘要： The ultra-narrow-band filter is the core unit of the solar telescope. It can realize the fine "slices" of the image data in the spectral domain. The Fabry-Perot Interferometer (FPI) is the most effective way to achieve this function. This project is based on the research of NIR Fabry-Petot Interferometer. And in order to improve the theory of ultra-narrow-band filter, the research is focused on the key techniques which are important to the performance of FPI. The research content includes: studying the mathematical model of FPI, establishing the relationship between technical parameters and performance parameters to provide theoretical basis for the realization of the FPI; studying simultaneous high-precision absolute test, providing measurement approach for the ultra-high precision fabrication of FPI’s optical plates to ensure the high spectral resolution of the transmission light; studying the low stress and high uniformity multilayer coated method based on the ZnS and Na3AlF6 material to achieve the near-infrared wide-spectrum high-through and high finesse of the transmission spectrum curve; studying the real-time and high-precision control technique to realize the trinity PZT system based on the capacitive displacement sensor, establishing the model relationship between the PZT driver control and the dynamic

英文关键词： Fabry-Perot interferometer；PZT；spectral imaging；；