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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 微系统工程 微系统工程
    • 频谱学是一种光谱学.

    背景情况:

    • 中红外 (MIR) 光谱对于材料分析至关重要,但往往需要昂贵的探测器阵列.
    • 现有的MIR光谱仪面临成本和复杂性的局限性.

    研究的目的:

    • 开发一个具有成本效益的MIR频谱重建方法.
    • 展示一种新的光谱仪设计,使用一个MEMS微闭门阵列 (MSA) 和一个单一的光电探测器 (PD).

    主要方法:

    • 一个预定模式的MIR波器的传输率是使用4x8像素的MEMS微闭门阵列 (MSA) 调节的.
    • 一个单像素光电探测器 (PD) 记录了各种MSA配置的光学功率.
    • 一个深度神经网络 (DNN) 从调制的光学功率重建了整个光谱.

    主要成果:

    • 通过使用10个MSA配置,成功地重建了光源的全部光谱,从3到5μm.
    • 在重建和基准真相光谱之间,平均平方误差低于1%.
    • 证明了昂贵的MIR光探测器阵列系统的低成本替代方案.

    结论:

    • 拟议的方法为MIR光谱学提供了一个可行的,低成本的解决方案.
    • 这种方法大大降低了MIR光谱仪的成本.
    • 基于DNN的重建使得高精度的光谱分析能够通过简化的硬件进行.