Kaiser, Thomas B.Thomas B.KaiserFalkner, MatthiasMatthiasFalknerQi, JingJingQiSteinert, MichaelMichaelSteinertMenzel, ChristophChristophMenzelRockstuhl, CarstenCarstenRockstuhlPertsch, ThomasThomasPertsch2022-03-122022-03-122015https://publica.fraunhofer.de/handle/publica/38876410.1364/CLEO_QELS.2015.FTh1E.2We theoretically and experimentally investigate circular plasmonic disc nanoantennas enhanced in their performance by a surrounding Bragg grating ring structure. PEEM investigations are demonstrated to provide unprecedented insights into the field localization and enhancement.en620conference paper