1. Low-threshold ultrafast all-optical switch implemented with metallic nanoshells in the photonic crystal ring resonator
- Author
-
Majid Ghadrdan and Mohammad Ali Mansouri-Birjandi
- Subjects
Materials science ,business.industry ,Physics::Optics ,02 engineering and technology ,Condensed Matter Physics ,01 natural sciences ,Nanoshell ,010309 optics ,Switching time ,Light intensity ,Resonator ,020210 optoelectronics & photonics ,Optics ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Nonlinear photonic crystal ,General Materials Science ,Electrical and Electronic Engineering ,business ,Ultrashort pulse ,Plasmon ,Photonic crystal - Abstract
An all-optical switch based on nonlinear photonic crystal ring resonator embedded with silica dielectric surrounded by silver nanoshell (NS) inside the ring resonator has been introduced and analyzed in this article. We considered silica with radius of 10 nm and silver with radius of 16 nm as core and shell, respectively. By placing NSs inside the photonic crystal ring resonator, we succeeded in reducing the threshold power to 12.8 mW/μm 2 and the switching time to about 0.4 ps. The results of this research suggest a new technique for reducing switching light intensity. With small size, ultra-fast switching time, and low-threshold power, the structure has the potential to be applied in optical integration circuits and nanoscale optical chips.
- Published
- 2017