15 October 2012 Modification of electric and magnetic dipole emission in anisotropic plasmonic systems
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Spontaneous emission of a dipole can be significantly modified in metamaterials, providing opportunities to engineer emission rates, yields, spectra, and angular patterns. To better understand specifics of such modifications for electric and magnetic emitters, we study luminescence of Eu3+ ions placed in a close vicinity of arrays of gold nanostrips. The luminescence is strongly polarized, with the preferable polarization parallel to the direction of strips. Polarization patterns and angular distributions of radiation depend on wavelength, and are different for electric and magnetic dipole transitions. The results are discussed in terms of different coupling of emitters with radiative and high-loss modes.
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N. Noginova, N. Noginova, R. Hussain, R. Hussain, M. A. Noginov, M. A. Noginov, J. Vella, J. Vella, A. Urbas, A. Urbas, "Modification of electric and magnetic dipole emission in anisotropic plasmonic systems", Proc. SPIE 8455, Metamaterials: Fundamentals and Applications V, 84551D (15 October 2012); doi: 10.1117/12.931826; https://doi.org/10.1117/12.931826


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