Open AccessElectromagnetically induced transparency and absorption in a compact silicon ring-bus-ring-bus system
Author(s) -
Zhenzheng Wang,
Qi Lu,
Yi Wang,
Jinsong Xia,
Qingzhong Huang
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.014368
Subject(s) - electromagnetically induced transparency , resonator , optics , coupled mode theory , silicon , finite difference time domain method , physics , ring (chemistry) , interference (communication) , materials science , optoelectronics , refractive index , computer science , telecommunications , channel (broadcasting) , chemistry , organic chemistry
We have theoretically and experimentally demonstrated electromagnetically induced transparency (EIT) and electromagnetically induced absorption (EIA) phenomena in a compact silicon ring-bus-ring-bus (RBRB) system. The two ring resonators in our RBRB system are both directly coupled and indirectly coupled through an asymmetric tricoupler. The coherent interference between a radiant mode and a subradiant mode in the two rings results in EIT and EIA effects at the through and drop ports, respectively. A theoretical model is established to analyze the proposed system based on temporal coupled mode theory. Finite-difference time-domain method is also employed to simulate the characteristics of this system. Consequently, RBRB structures were fabricated on a silicon-on-insulator platform and EIT and EIA transmissions have been observed simultaneously in the two outputs. The experimental results agree with our theoretical modeling and numerical simulations.