Optical interconnects, leveraging surface plasmon modes, are revolutionizing high-performance computing and AI, overcoming the limitations of electrical interconnects in speed, energy efficiency, and miniaturization. These nanoscale photonic circuits integrate on-chip light manipulation and signal conversion, marking significant advancements in optoelectronics and data processing efficiency. Here, we present a novel plasmonic interconnect circuit, by introducing refractive index matching layer, the device supports both pure SPP and different hybrid modes, allowing selective excitation and transmission based on light wavelength and polarization, followed by photocurrent conversion. We optimized the coupling gratings to fine-tune transmission modes around specific near-infrared wavelengths for effective electrical detection. Simulation results align with experimental data, confirming the device’s ability to detect complex optical modes. This advancement broadens the applications of plasmonic interconnects in high-speed, compact optoelectronic and sensor technologies, enabling more versatile nanoscale optical signal processing and transmission.

中文翻译：

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基于等离子体互连电路的复杂SPP和波导模式的芯片控制与检测


光学互连利用表面等离子体激元模式，正在彻底改变高性能计算和人工智能，克服电气互连在速度、能源效率和小型化方面的限制。这些纳米级光子电路集成了片上光操纵和信号转换，标志着光电和数据处理效率的重大进步。在这里，我们提出了一种新型等离子体互连电路，通过引入折射率匹配层，该器件支持纯SPP和不同的混合模式，允许基于光波长和偏振的选择性激发和传输，然后进行光电流转换。我们优化了耦合光栅，以微调特定近红外波长周围的传输模式，以实现有效的电检测。仿真结果与实验数据一致，证实了该设备检测复杂光学模式的能力。这一进步拓宽了等离子体互连在高速、紧凑型光电和传感器技术中的应用，实现了更通用的纳米级光信号处理和传输。