Tamm plasma-polariton (TPP) resonance is a confined state at the interface between photonic crystals and the metal. In this presentation, we have demonstrated the concept of bound states in the continuum with TPP, which allows the ultra-sharp resonance and large Q-factor. By combining liquid crystals and TPP devices, the quality factor of resonance would be tunable. Several developments and applications, like narrow-band filters, thermal emitters, sensors, photodetectors would be discussed.
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