环形光瞳对远心光路中法布里-珀罗滤光器的影响

发布时间：2018-02-12 17:17

本文关键词： 成像系统干涉成像法布里-珀罗滤光器二维成像光谱仪　出处：《激光与光电子学进展》2016年09期 　论文类型：期刊论文

【摘要】：天文法布里-珀罗滤光器通常有两种配置光路,平行光路和远心光路。主要研究了在远心光路和环形光瞳情况下,宽径比与F数对滤光器的像差、中心波长与带宽的影响。运用数值模拟方法,对光线进行追踪,求出滤光器出射面的复振幅叠加结果。数值模拟结果表明,滤光器的像差在F数大于50时没有明显劣化,中心波长的偏移量随宽径比的减小而增大,透过带宽随宽径比减小而减小,中心波长偏移量和带宽均随F数增大而减小。当F数相对较小(如F=100)时,可以在获得更大视场的同时获得窄至5.6pm的带宽,这将成为大型环形太阳望远镜的优势之一。
[Abstract]:Astronomical Fabry-Perot filters usually have two kinds of optical paths, parallel optical paths and telecentric optical paths. The aberration of the ratio of width to diameter to F number of filters is studied in the case of telecentric optical path and ring pupil. The effects of central wavelength and bandwidth. The complex amplitude superposition of the output surface of the filter is obtained by tracing the light by numerical simulation. The numerical simulation results show that the aberration of the filter has no obvious deterioration when the F number is greater than 50. The offset of the center wavelength increases with the ratio of width to diameter, the transmission bandwidth decreases with the ratio of width to diameter, and the offset of the center wavelength and the bandwidth of the center wavelength decrease with the increase of the F number. One of the advantages of large circular solar telescopes would be to gain a narrower bandwidth of up to 5.6 pm as well as a larger field of view.
【作者单位】：中国科学院云南天文台天文技术实验室;中国科学院大学;
【基金】：国家自然科学基金(11473067,11273059)
【分类号】：P111.41

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