摘要
The plasmon resonances and magnetic field enhancement in double split-hole disk are investigated by using finite element method. The multipolar modes and the magnetic Fano resonances of the double split-hole disk can be tuned by modifying the structure parameters. The oscillate direction of the closed current in the right and the left split hole can be tuned, achieving the bright and dark magnetic modes of this system. These new emergent phenomena in this nanostructure have potential applications in the propagation of low-loss magnetic plasmons and advanced devices based on magnetic Fano resonances.
- 出版日期2016-2
- 单位陕西师范大学