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首页> 外文会议>Optical Systems Design 2015: Advances in optical thin films V >Optical and Mechanical Properties of Infrared Thin Film at Cryogenic Temperature
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Optical and Mechanical Properties of Infrared Thin Film at Cryogenic Temperature

机译：低温下红外薄膜的光学和力学性能

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摘要

For the most demanding infrared applications, fine knowledge of system performance under operational temperature is required. Management of thin film spectral and mechanical behaviour at cryogenic temperature is a key factor to improve infrared system performances. Reosc recently investigated models and methods to anticipate measure and control effects of low temperature on coated optical components. Solutions have been developed in order to maximize highest performances under operational conditions. Effects of temperature on spectral transmission and flatness have been studied. This work has been applied to narrow band pass filters and dichroic coatings working in the range 55K to 90K. Measurements show satisfying correspondence with model. On the basis of model prediction, process and design have then been adapted to improve performances at operational temperature. It has been applied to manufacturing of optics for MTG satellites and IASI NG instrument.
机译：对于最苛刻的红外应用，需要对工作温度下的系统性能有深入的了解。在低温下管理薄膜光谱和机械行为是提高红外系统性能的关键因素。 Reosc最近研究了模型和方法，以预测低温对涂层光学元件的测量和控制效果。已经开发出解决方案以便在操作条件下最大化最高性能。研究了温度对光谱透射率和平坦度的影响。这项工作已应用于工作在55K至90K范围内的窄带通滤光片和二向色涂层。测量显示与模型具有令人满意的对应关系。在模型预测的基础上，对过程和设计进行了调整，以改善工作温度下的性能。它已被应用于制造MTG卫星和IASI NG仪器的光学器件。

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