Related Experiment Video
Updated: May 29, 2026

Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators
Published on: August 8, 2025
Experimental demonstration of coupled-resonator-induced-transparency in silicon-on-insulator based ring-bus-ring
S Darmawan1, L Y M Tobing, D H Zhang
1Nanophotonics Laboratory, School of Electrical & Electronic Engineering, Nanyang Technological University, Singapore, Singapore.
Abstract:
We experimentally demonstrate coupled-resonator-induced-transparency (CRIT) phenomenon in ring-bus-ring (RBR) geometry synergistically integrated with Mach-Zehnder interferometer (MZI). The RBR consists of two detuned resonators indirectly coupled through a center bus waveguide. The transparency is obtained by increasing the light intercavity interaction through tailoring the RBR phase response while ensuring balanced MZI operation. In this work, a CRIT resonance with a quality factor of ~18,000 is demonstrated with cavity size detuning of ~0.035% and power coupling of ~60%, which are in good agreement with the theory.
Related Concept Videos
Sound Waves: Resonance
Characteristics of Series Resonant Circuit
Biasing of Metal-Semiconductor Junctions
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...

