CAJ | 학술논문

偏振遥感器的偏振探测精度受仪器自身的偏振特性影响。其中偏振遥感器镜头的相位延迟是其自身偏振特性的重要组成部分。分析了偏振遥感器镜头相位延迟对偏振遥感测量的影响。说明了镜头的相位延迟可以由各镀膜界面相位延迟累加得到，且主要由光学薄膜引入了镜头相位延迟。随后利用薄膜理论推导出了单透镜界面相位延迟的解析解。采用该解析式对可见及近红外、红外、超宽带三类减反射膜系的实际应用样例进行研究，结果表明：单界面常规宽带减反射膜系的相位延迟随着波长增加而单调递减。因而，对于宽波段偏振遥感器镜头，无法利用各光学界面间的补偿来获得总的低相位延迟。
편진요감기적편진탐측정도수의기자신적편진특성영향。기중편진요감기경두적상위연지시기자신편진특성적중요조성부분。분석료편진요감기경두상위연지대편진요감측량적영향。설명료경두적상위연지가이유각도막계면상위연지루가득도，차주요유광학박막인입료경두상위연지。수후이용박막이론추도출료단투경계면상위연지적해석해。채용해해석식대가견급근홍외、홍외、초관대삼류감반사막계적실제응용양례진행연구，결과표명：단계면상규관대감반사막계적상위연지수착파장증가이단조체감。인이，대우관파단편진요감기경두，무법이용각광학계면간적보상래획득총적저상위연지。
The polarimetric accuracy of existent polarization remote sensors is largely controlled by the polarization properties of those instruments themselves. The retardance of lens in the polarization remote sensors is a key part of the polarization characteristics whose stabilities are crucial for finally reliable polarimetric results. By analyzing the effect of the retardance of the lens in the polarimetric remote sensing measurement, it can show that the total retardance equals to the simple summing of each retardance from various optical interfaces with optical coatings, and the main part of total retardance is from optical coatings. The mathematical expression of retardance from single interface′s broadband antireflection coatings is derived from thin film theoretical analysis. Typical examples of visible and near-infrared, infrared, ultra-broadband antireflection coatings in actual applications were studied with this expression, the result shows that retardance of general broadband antireflection coatings is monotone decreasing while wavelength increases. Furthermore, the lens in broadband polarization remote sensors can hardly achieve lower overall retardance by compensation between optical interfaces.