Electrochromic polymers incorporated into plasmonic systems provide a possibility to control plasmonic properties with the applied voltage. Using gold-polyaniline (PANI) bilayers, we study the effect of coloration switching on surface plasmon polaritons propagating at the PANI-gold interface. The width of the resonance, magnitude of the plasmon wave-vector and dielectric permittivity of PANI are estimated as the function of the applied voltage.
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Ashleigh K. Wilson, Paula Fortuno, Mohammad Shahabuddin, Natalia Noginova, "Effect of electrochromic polymer switching on surface plasmon polaritons," Proc. SPIE 12195, Metamaterials, Metadevices, and Metasystems 2022, 121950I (3 October 2022); https://doi.org/10.1117/12.2633586