Mach-Zehnder-Fano interferometer
Andrey E. Miroshnichenko, and Yuri S. Kivshar
TL;DR
This paper introduces the Mach-Zehnder-Fano interferometer, integrating a Fano resonance cavity into a traditional setup, revealing highly sensitive transmission properties and novel resonant behaviors through simulations.
Contribution
It presents a new interferometer design combining Fano resonance with Mach-Zehnder configuration, analyzed via scattering-matrix approach and demonstrated with photonic crystal simulations.
Findings
Transmission sensitivity to cavity position
Presence of narrow resonances with near-perfect reflection
Novel regimes of resonant transmission and reflection
Abstract
We introduce a concept of the Mach-Zehnder-Fano interferometer by inserting a cavity exhibiting Fano resonance into a conventional interferometer. By employing the scattering-matrix approach, we demonstrate that the transmission is sensitive to a position of the cavity such that an asymmetric structure exhibits a series of narrow resonances with almost perfect reflection. We discuss how to implement this novel geometry in two-dimensional photonic crystals and use direct numerical simulations to demonstrate novel regimes of the resonant transmission and reflection.
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