Coupled localized surface plasmon resonances (LSPRs) in periodic arrays of metallic nanowires are attractive for use in sensing applications due to their light enhancement and their sensitivity to the surrounding environment. Due to the interwire coupling, they behave as plasmonic waveguides with high wavevector modes that require bulky methods for efficient excitation. In this contribution, we demonstrate the excitation of coupled LSPRs in gold nanowires with photonic modes supported by an optical waveguide made with ion exchange technology. Currently, although weakly-coupled LSPRs are experimentally demonstrated, strongly-coupled LSPRs are only demonstrated numerically due to the challenge represented by the fabrication of a high density nanowire array with current electron beam lithography. Due to their operation across the visible spectrum and its low-loss coupling to standard optical fibers, integrated nanowires on glass waveguides open new perspectives for the development of hybrid photonic-plasmonic integrated optical devices.

金属纳米线的周期性阵列中的耦合局部表面等离子体激元共振（LSPR），因其光增强和对周围环境的敏感性而吸引用于传感应用。由于线间耦合，它们表现为具有高波矢模式的等离子波导管，需要使用大量方法进行有效激励。在这项贡献中，我们展示了用离子交换技术制成的光波导支持的光子模式在金纳米线中耦合LSPR的激发。当前，尽管通过实验证明了弱耦合的LSPR，但是由于用当前电子束光刻技术制造高密度纳米线阵列所代表的挑战，因此仅在数值上证明了强耦合的LSPR。