A compact plasmonic tunable filter using elasto-optic effects

作者：Dwivedi Ram Prakash; Lee El Hang^*

来源：Optics and Laser Technology, 2012, 44(7): 2130-2134.

DOI：10.1016/j.optlastec.2012.03.014

• MDM waveguide
• Elasto-optic effect
• Nanoring resonator

We report on the theoretical concept of the design of a compact plasmonic tunable filter made of a metal-dielectric-metal waveguide and using elasto-optic effects. The proposed device is designed in a nanoring resonator structure and numerically studied by means of 3D-FEM simulations. We obtained an optimized nanoring resonator that has a radius R=390 nm and resonances at the telecommunication wavelength of 1.58 mu m. Simulations using elasto-optic material as the dielectric layer and top and bottom Ag layers as electrodes indicate that the output can be tuned in the telecommunication wavelength range with an applied field. Further, using the proposed device, optical switching phenomenon is also found to be possible. This tunable ring resonator filter with ultra-small radii is considered valuable for photonic integrated systems.

• 出版日期2012-10