Noble metal nanoparticles strongly adhered to dielectric matrices have been extensively studied because of their potential applications in plasmonic devices based on tunable localized surface plasmon (LSP) excitation. Compared with conventional synthesis methods, the noble metal nanoparticles formed by ion-beam irradiation draw significant interest in recent years because a single layer dispersion of nanoparticles strongly bonded on the dielectric substrate can be obtained. In this paper, important phenomena related to ion-beam surface nanostructuring including ion-induced reshaping of metal nanoparticles, ion-induced core-satellite structure formation, and ion-induced burrowing of these nanoparticles are discussed, with their individual effects on LSP excitation. Consequently, ion-induced surface nanostructuring of Ag-Au bimetallic films on amorphous silica glass and sapphire with tunable LSP excitation are presented. In addition, theoretical studies of far-field and near-field optical properties of these nanoparticles under ion irradiation are introduced, and the enhanced localized electric field (hot spot) is interpreted. Finally, the futures and challenges of the emerging plasmonic applications based on tunable LSP excitations in bio-sensing and surface enhanced Raman spectroscopy (SERS) are presented.

由于它们在基于可调谐局部表面等离子体激元（LSP）激发的等离子体设备中的潜在应用，因此已广泛研究了牢固粘附至介电基质的贵金属纳米颗粒。与传统的合成方法相比，通过离子束辐照形成的贵金属纳米颗粒近年来引起了极大的兴趣，因为可以得到牢固结合在介电基材上的纳米颗粒的单层分散体。在本文中，讨论了与离子束表面纳米结构有关的重要现象，包括离子诱导的金属纳米颗粒的重塑，离子诱导的芯-卫星结构的形成以及离子诱导的这些纳米颗粒的凹陷，以及它们对LSP激发的单独影响。所以，提出了可调谐的LSP激发在非晶硅玻璃和蓝宝石上离子诱导的Ag-Au双金属膜的表面纳米结构。此外，介绍了这些纳米粒子在离子辐照下的远场和近场光学特性的理论研究，并解释了增强的局部电场（热点）。最后，介绍了在生物传感和表面增强拉曼光谱（SERS）中基于可调谐LSP激发的新兴等离子应用的未来和挑战。