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Resonances of surface and volume plasmons in atomic clusters

机译:原子团簇中表面和体积等离子体激元的共振

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摘要

The resonance phenomena caused by the excitation of the surface and volume plasmons in the metal and ionized atomic clusters are studied in the framework of hydrodynamic and kinetic approaches with the inclusion of radiative, collisional, and kinetic (collisionless) damping mechanisms. The resonances of dipole moment at the frequencies of the volume plasmons are found to be strongly damped by the collision-induced losses, while the field amplitude at the central region of the cluster may exhibit large increase at the resonance of both kind of plasmons.
机译:在流体动力学和动力学方法的框架内研究了由金属和离子化原子团簇中的表面和体积等离激元的激发引起的共振现象,其中包括辐射,碰撞和动力学(无碰撞)阻尼机制。偶极矩在体积等离激元频率上的共振被碰撞诱导的损耗所强力衰减,而在簇中心区域的场振幅可能在两种等离激元的共振处表现出较大的增加。

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