银层超透镜光学传递函数的研究  

The study on optical transfer function of silver superlens

作　　者：肖啸[1] 张志友[2] 肖志刚[1] 许德富[1] 邓迟[1] 

机构地区：[1]乐山师范学院物理与电子工程学院,乐山614004 [2]四川大学物理科学与技术学院纳光子技术研究所,成都610064

出　　处：《物理学报》2012年第11期232-238,共7页Acta Physica Sinica

基　　金：四川省教育厅青年基金(批准号:11ZB133);乐山师范学院利研基金(批准号:Z1007);乐山市科技局科技基金(批准号:10GZD022)资助的课题~~

摘　　要：银层超透镜对基于表面等离子体激元的超分辨光刻、成像和生物传感有着重要作用.利用银层超透镜的光学传递函数详细研究了银板的表面等离子体激元共振和成像特性,并利用时域有限差分法计算模拟了银层超透镜的成像过程,得到与理论推导公式相符合的结果,证明了光学传递函数的可靠性,为基于表面等离子体激元的传感器件、超分辨成像以及辅助增强干涉光刻提供了快速参数优化方法.Silver superlens has a great influence on super-resolution lithography, imaging and the biosensing based on surface plasmon polaritons. In this paper, the surface plasmon resonance and the imaging of silver film are discussed in detail with optical transfer function of silver superlens. And the imaging process of silver superlens has also been simulated with the finite difference time domain. The simulation results are in agreement with those from the theoretical formulas, which fully proves the optical transfer function to be reliable. This may be an effective method of rapid parameter optimization for sensors, super-resolution imaging and enhance the interference lithography based on surface plasmon polaritons.

关 键 词：光学传递函数 银层超透镜 表面等离子体激元 时域有限差分法 

分 类 号：O438[机械工程—光学工程]