Physics – Optics
Scientific paper
2010-11-19
Physics
Optics
accepted by Optics Express
Scientific paper
We present theoretical and numerical analysis of a plasmonic-dielectric hybrid system for symmetric and asymmetric coupling between silver cut-wire pairs and silicon grating waveguide with periodic grooves. The results show that both couplings can induce electromagnetically-induced transparency (EIT) analogous to the quantum optical phenomenon. The transmission spectrum shows a single transparency window for the symmetric coupling. The strong normal phase dispersion in the vicinity of this transparent window results in the slow light effect. However, the transmission spectrum appears an additional transparency window for asymmetry coupling due to the double EIT effect, which stems from an asymmetrically coupled resonance (ACR) between the dark and bright modes. More importantly, the excitation of ACR is further associated with remarkable improvement of the group index from less than 40 to more than 2500 corresponding to a high transparent efficiency by comparing with the symmetry coupling. This scheme provides an alternative way to develop the building blocks of systems for plasmonic sensing, all optical switching and slow light applications.
Dai Lei
Jiang Chun
Tang Baitian
No associations
LandOfFree
Electromagnetically induced transparency in hybrid plasmonic-dielectric system does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Electromagnetically induced transparency in hybrid plasmonic-dielectric system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetically induced transparency in hybrid plasmonic-dielectric system will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-116905