等离激元调控金纳米孔阵列的超快非线性光学响应  

Manipulation of Ultrafast Nonlinear Optical Response Based on Plasmonics in Gold Nanopore Arrays

作　　者：何勇林 HE Yonglin(School of Electronic Information,Zhangzhou Institute of Technology,Zhangzhou 363000,China)

机构地区：[1]漳州职业技术学院电子信息学院,福建漳州363000

出　　处：《湖北民族大学学报（自然科学版）》2024年第2期241-246,共6页Journal of Hubei Minzu University:Natural Science Edition

基　　金：漳州职业技术学院博士科研启动基金项目(ZZYB2203);福建省中青年教师教育科研项目(JAT220674);漳州市科协科技智库调研课题(ZZSKX-2023011)。

摘　　要：为了明确表面等离激元对金属纳米结构的超快非线性光学响应的调控机制,以金纳米孔阵列为对象,通过电磁场-传热耦合仿真研究不同激发条件下等离激元模式的瞬态光学响应。结果表明,共振激发等离激元模式可以得到比非共振激发更强更快的瞬态光学响应,而且不同等离激元模式诱导产生的瞬态光学响应也存在明显的差异。通过该研究可以为设计高性能全光调控器件提供一种新的思路,并有助于从物理机制上理解表面等离激元共振相关的超快非线性光学效应。To clarify the modulation mechanism of surface plasmon on ultrafast nonlinear optical response of metal nanostructures,the transient optical response of plasmon modes under different excitation conditions were studied through electromagnetic field-heat transfer coupling simulation,with gold nanopore arrays as the target.The results showed that resonance excitation of plasmon modes could lead to stronger and faster transient optical responses than non-resonant excitation,and there were also significant differences in transient optical responses induced by different plasmon modes.This study provides a new idea for designing high-performance all-optical modulation devices,and help to understand the ultrafast nonlinear optical effects related to surface plasmon resonance from the physical mechanism.

关 键 词：表面等离激元 超快动力学 热电子 非线性光学 纳米光子学 光场调控 超快光谱学 

分 类 号：O433[机械工程—光学工程]