Mach–Zehnder–Fano interferometer

Miroshnichenko, Andrey E.; Kivshar, Yuri S.
September 2009
Applied Physics Letters;9/21/2009, Vol. 95 Issue 12, p121109
Academic Journal
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 becomes 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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