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首页> 外文会议>International Applied Computational Electromagnetics Society Symposium >Design Optimization of Dual-Band and Double-Polarization IR Perfect Absorbers Using Adjoint Sensitivities
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Design Optimization of Dual-Band and Double-Polarization IR Perfect Absorbers Using Adjoint Sensitivities

机译：利用伴随灵敏度设计双频和双极化红外完美吸收体

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摘要

In this work, we utilize adjoint sensitivity approach within a constrained optimization algorithm to design a dual band infrared perfect absorber (IR-PA). The structure is composed of a silver circular ring and an elliptic cross centered on top of a two layer substrate. Dimensions of the ring and crossed ellipses in addition to the thicknesses are considered the design parameters. Careful parameters' optimization leads to a dual-band and near unity absorber at 2.7 μm and 6.0 μm, respectively. The symmetry of the design allows the operation at a polarization free electromagnetic excitation. The absorption peak wavelengths and their bandwidths can be tailored to match with a wide range of applications such as detection, energy harvesting, imaging, and stealth technologies.
机译：在这项工作中，我们利用约束优化算法中的伴随灵敏度方法来设计双波段红外完美吸收体（IR-PA）。该结构由一个银圆环和一个以两层基板的顶部为中心的椭圆形十字组成。除厚度外，环形和椭圆形的尺寸均被视为设计参数。仔细的参数优化会导致双频吸收器和接近统一的吸收器，分别为2.7μm和6.0μm。设计的对称性允许在无极化电磁激励下运行。可以调整吸收峰的波长及其带宽，以与广泛的应用程序相匹配，例如检测，能量收集，成像和隐身技术。

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