Compact Metallo-dielectric Optical Antenna For Ultra Directional and Enhanced Radiative Emission

Abstract : We report the design of highly efficient optical antennas employing a judicious synthesis of metallic and dielectric materials. In the proposed scheme, a pair of metallic coupled nanoparticles permits large enhancements in both excitation strength and radiative decay rates, while a high refractive index dielectric microsphere is employed to efficiently collect light without spoiling the emitter quantum efficiency. Our simulations indicate potential fluorescence rate enhancements of 3 orders of magnitude over the entire optical frequency range.
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https://hal.archives-ouvertes.fr/hal-00494398
Contributor : Nicolas Bonod <>
Submitted on : Wednesday, June 23, 2010 - 10:22:22 AM
Last modification on : Monday, March 4, 2019 - 2:04:12 PM

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A. Devilez, B. Stout, N. Bonod. Compact Metallo-dielectric Optical Antenna For Ultra Directional and Enhanced Radiative Emission. ACS Nano, American Chemical Society, 2010, 4 (6), pp.3390-3396. ⟨10.1021/nn100348d⟩. ⟨hal-00494398⟩

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