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基于Al/Zr的多层镜子具有创纪录的反射率.

V N Polkovnikov, N I Chkhalo, S A Garakhin

    Optics letters
    |August 15, 2024
    PubMed
    概括

    研究人员为极紫外线 (EUV) 光学开发了一种新的多层结构,实现了创纪录的67%反射率. 这种稳定的结构是太阳冠状研究的理想选择.

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    Be/Si/Al multilayer mirrors as the most promising optical elements for spectroscopy and imaging in the spectral region of 17-32 nm.

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    科学领域:

    • 材料科学 材料科学 材料科学
    • 光学是什么?光学是什么?光学是什么?
    • 天体物理学 天体物理学

    背景情况:

    • 对太阳冠状体的研究需要先进的光学组件来进行极端紫外线 (EUV) 观测.
    • 现有的多层光学在特定EUV波长的反射率和光谱分辨率方面存在局限性.

    研究的目的:

    • 开发和描述一种新的多层结构,以提高EUV光学性能.
    • 评估空间应用开发的光学特征的时间稳定性.

    主要方法:

    • 制造一种新的Zr/Be/Si/Al多层结构.
    • 在17-20纳米范围内的反射率和光谱分辨率的表征.
    • 评估光学属性的时间稳定性.

    主要成果:

    • 在17-20nm光谱范围内达到高达67%的记录反射率.
    • 显示了高光谱分辨率约为27 (λ/Δλ).
    • 证实了极紫外线 (EUV) 光学特性的高时间稳定性.

    结论:

    • 新的Zr/Be/Si/Al多层结构为EUV应用提供了卓越的性能.
    • 证明的稳定性和高反射率使其成为未来太阳冠状卫星任务的有希望的候选人.

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