Photonics Research, 2016, 4 (6): 06000272, Published Online: Dec. 23, 2016
Low cross-talk, deep subwavelength plasmonic metal/insulator/metal waveguide intersections with broadband tunability Download: 935次
Abstract
We suggest a low cross-talk plasmonic cross-connector based on a metal/insulator/metal cavity and waveguides. We separately investigate the isolated cavity mode, the waveguide mode, and the combination of cavity and waveguide modes using a finite-different time-domain method. Due to resonant tunneling and the cutoff frequency of the odd waveguide mode, our proposed structure achieves a high throughput transmission ratio and eliminates cross-talk. Furthermore, the proposed structure has a broadband tunability of 587 nm, which can be achieved by modulating the cavity air gap thickness. This structure enables the miniaturization of photonic integrated circuits and sensing applications.
Tae-Woo Lee, Da Eun Lee, Young Jin Lee, Soon-Hong Kwon. Low cross-talk, deep subwavelength plasmonic metal/insulator/metal waveguide intersections with broadband tunability[J]. Photonics Research, 2016, 4(6): 06000272.