ABSTRACT In this paper, we studied the impact of material characteristics on the optical response of a perforated surface plasmon system as a general trend by employing dielectric function of metallic film. To this end, different artificial materials were modeled based on a single interband transition peak in the form of a Lorentzian function in the imaginary part of dielectric function as well as a Drude term for free electron feature. The impact of place, strength and broadening of interband peak of metallic film were evaluated on the optical transmission spectrum. Our results revealed that these peaks affect the excited modes in the form of a decrease in the intensity of transmitted beam at corresponding frequencies. This decrease was proportional to the strength and width of the peak, and interpreted as an optical dissipation coming from material specifics. The present study provides a better insight into how the optical transmission response of such systems can be tuned for a particular goal or application using material characteristics.

中文翻译：

---

材料特性对穿孔表面等离子体系统一般光学行为的影响

摘要在本文中，我们通过采用金属薄膜的介电函数研究了材料特性对穿孔表面等离子体系统的光学响应的​​影响作为总体趋势。为此，基于介电函数虚部中洛伦兹函数形式的单个带间跃迁峰以及自由电子特征的德鲁德项对不同的人造材料进行建模。评估了金属薄膜带间峰的位置、强度和展宽对光透射光谱的影响。我们的结果表明，这些峰值以相应频率下透射光束强度降低的形式影响激发模式。这种减少与峰的强度和宽度成正比，并解释为来自材料特性的光耗散。本研究提供了更好地了解如何使用材料特性针对特定目标或应用调整此类系统的光传输响应。