Transparent conductive oxides for the epsilon-near-zero Tamm plasmon polaritons

Rashid G. Bikbaev, Stepan Ya. Vetrov, Ivan V. Timofeev
2019 Journal of the Optical Society of America. B, Optical physics  
We demonstrated the possibility of using transparent conducting oxides (AZO, GZO, ITO) to form Tamm plasmon polaritons in the near-infrared spectral range where the permitivity of oxides is near-zero. The spectral properties of the structures have been investigated in the framework of the temporal coupled mode theory and confirmed by transfer matrix method. It was found that in the critical coupling conditions the maximal Q-factor of a Tamm plasmon polariton is achieved when photonic crystal is
more » ... conjugated with the AZO film, while at the conjugation with the ITO films the broadest spectral line is obtained. The sensitivity of the wavelength and spectral width of the Tamm plasmon polariton to changes of the oxide film thickness, the bulk concentration of a dopand and the angle of incidence are demonstrated.
doi:10.1364/josab.36.002817 fatcat:3h7a7fiy7nd6xejgclwuxe5kwy