基于天线理论的非对称纹理图像传感器：受自然启发的设计
Asymmetric Textured Image Sensors Based on Antenna Theory as Designed by Nature
AI总结：
该研究受细菌光合光捕获器启发，将对称倒金字塔阵列CMOS图像传感器改为非对称纹理，经MEEP-FDTD模拟，发现亚波长结构不对称未显著打破洛伦兹互易性，明确了微观非互易性的几何阈值。
AI中文摘要：
本工作数值验证了源自细菌光合光捕获器的生物启发概念在CMOS（互补金属氧化物半导体）上的应用。我们研究将对称倒金字塔阵列CMOS图像传感器修改为非对称形状纹理，以探索被动非互易性的结构边界。不同于传统宏观连续介质假设，我们分析亚波长尺度的结构不对称性是否能在被动、线性、时不变条件下诱导非互易散射。我们开发了基于微扰理论的理论框架，估计效率可提升5%至15%。通过MEEP时域有限差分（FDTD）平台开展的数值模拟显示，线性响应高度局域，仅呈现0.02%的细微变化。这表明，由于顶点场集中，宏观洛伦兹互易性在所研究尺度下仍保持鲁棒性，为微观非互易性界定了明确的几何阈值。
英文摘要：
This work numerically validates the application of bio-inspired concepts on CMOS derived from bacterial photosynthetic light harvesters. We investigate a modification of symmetric inverted pyramid array CMOS image sensors into an asymmetrically shaped texture to explore the structural boundary of passive non-reciprocity. Diverging from traditional macroscopic continuum assumptions, we analyze whether structural asymmetry at sub-wavelength scales can induce non-reciprocal scattering under passive, linear, and time-invariant conditions. A theoretical framework based on perturbation theory is developed, estimating a potential efficiency enhancement of 5\% to 15\%. Numerical simulations performed via the MEEP finite-difference time-domain (FDTD) platform reveal that the linear response is highly localized, showing a subtle 0.02\% change. This suggests that macroscopic Lorentz reciprocity remains robust at the investigated scale due to apex field concentration, defining a clear geometric threshold for microscopic non-reciprocity.
