用时域有限差分法分析双频带滤波器的教学探讨
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摘要
双频段滤波器是微纳光学与材料课程中一类非常重要的器件,它在工业生产实际过程中具有广泛应用。然而学生对此类器件的相关理论方面的内容是含糊不清的。为加强学生对本知识点的理解和掌握,本文借助时域有限差分法从理论上详细讨论双频段滤波器是如何构建以及如何工作的。鉴于所采用的教学辅助方法非常的直观和形象,因此可明显提高学生的学习积极性和对本知识点的识记。
Dual-band filter is a very important device in the course of Micro-nano Optics and Materials.It is widely used in industrial production.However,students are ambiguous about the theoretical aspects of such devices.In order to strengthen the students' understanding and mastery of this knowledge point,this paper discusses in detail how the dual-band filter is constructed and how to work by using the finite difference time domain method.In view of the fact that the teaching aid method adopted is very intuitive and vivid,it can obviously improve students' learning enthusiasm and knowledge of this knowledge point.
Dual-band filter is a very important device in the course of Micro-nano Optics and Materials.It is widely used in industrial production.However,students are ambiguous about the theoretical aspects of such devices.In order to strengthen the students' understanding and mastery of this knowledge point,this paper discusses in detail how the dual-band filter is constructed and how to work by using the finite difference time domain method.In view of the fact that the teaching aid method adopted is very intuitive and vivid,it can obviously improve students' learning enthusiasm and knowledge of this knowledge point.
引文
[1]胡瑞.基于复合微纳金属光栅—波导结构的双通道带通滤波器的设计[D].大连:大连理工大学,2015.
[2]罗虎.亚波长金属结构光传输特性的时域有限差分模拟[D].衡阳:南华大学,2012.
[3]林静.表面等离子微纳结构光束调控器件的设计研究[D].北京:中国科学院研究生院(光电技术研究所),2013.
[4]Yee K.S.Numerical solution of initial boundary value prob-lems involving maxwell's equations in isotropic media[J].IEEETransactions on Antennas and Propagation,1966,14(3):302-307.
[5]葛德彪,闫玉波.电磁波时域有限差分方法[M].西安:西安电子科技大学出版社,2011.
[6]吕英华.计算电磁学的数值方法[M].北京:清华大学出版社,2006.
[7]Ye Y.,Jin Y.,He S.Omni-directional,broadband and polariza-tion-insensitive thin absorber in the terahertz regime[J].Journalof the Optical Society of America B,2010,27(3):498-503.
[2]罗虎.亚波长金属结构光传输特性的时域有限差分模拟[D].衡阳:南华大学,2012.
[3]林静.表面等离子微纳结构光束调控器件的设计研究[D].北京:中国科学院研究生院(光电技术研究所),2013.
[4]Yee K.S.Numerical solution of initial boundary value prob-lems involving maxwell's equations in isotropic media[J].IEEETransactions on Antennas and Propagation,1966,14(3):302-307.
[5]葛德彪,闫玉波.电磁波时域有限差分方法[M].西安:西安电子科技大学出版社,2011.
[6]吕英华.计算电磁学的数值方法[M].北京:清华大学出版社,2006.
[7]Ye Y.,Jin Y.,He S.Omni-directional,broadband and polariza-tion-insensitive thin absorber in the terahertz regime[J].Journalof the Optical Society of America B,2010,27(3):498-503.