Ken Takazawa, Jun-ichi Inoue, Kazutaka Mitsuishi and Takashi Kuroda Ultracompact Asymmetric Mach–Zehnder Interferometers with High Visibility Constructed from Exciton Polariton Waveguides of Organic Dye Nanofibers Advanced Functional Materials 23
Ultracompact asymmetric Mach–Zehnder interferometers are fabricated using self-assembled nanofibers of thiacyanine dye that propagate exciton polaritons. The devices with a footprint of only ≈20 μm × 20 μm exhibit a visibility of nearly unity and function as high-performance channel drop filters for the visible wavelength region. The results demonstrate the remarkable potential of polariton-based miniaturized photonic circuits.
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