Tamm plasmon-polaritons (TPPs) have attracted many interest due to the peculiarities of their optical properties. TPPs are optical surface states, which can be excited at the boundary of distributed Bragg reflector and metal film. Like in case of surface plasmon-polaritons or surface electromagnetic waves excitation, the emergence of the TPP leads to the localization of the electromagnetic field near the DBR/metal interface. Experimentally, TPP can be detected by a narrow resonance in reflectance or transmittance spectrum of the DBR/metal structure. Tamm plasmon-polaritons were proposed to be used in several types of novel optical elements, such as sensors and lasers. It was also shown that TPPs can be effectively coupled with other localized states like surface plasmons and microcavity modes. In this contribution the direct measurements of the Tamm plasmon-polariton relaxation dynamics are presented. The lifetime of the TPP in one-dimensional photonic crystal is estimated experimentally and compared to the results of numerical calculations. The dependence of the lifetime on the angle of incidence and duration of the incident pulse is supported by numerical studies performed with the finite difference time-domain technique.
Boris I. Afinogenov, Anna A. Popkova, Vladimir O. Bessonov, and Andrey A. Fedyanin, "Femtosecond dynamics of Tamm plasmon-polaritons
(Conference Presentation)," Proc. SPIE 9921, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIV, 992111 (Presented at SPIE Nanoscience + Engineering: August 30, 2016; Published: 9 November 2016); https://doi.org/10.1117/12.2238690.5161456653001.
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