Straightforward control of light in a metallic trimer

Nicolas Bonod; Alexis Devilez; Brian Stout

doi:10.1117/12.860549

10 September 2010 Straightforward control of light in a metallic trimer

Nicolas Bonod, Alexis Devilez, Brian Stout

Proceedings Volume 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII; 77570E (2010) https://doi.org/10.1117/12.860549
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

A trimer of gold particles 50 nm in diameter is illuminated in oblique incidence by a plane wave. It is shown that one can fully focus light in only one nanogap and that the localization of the hot spot between the two nanogaps is controlled via the angle of incidence of the illuminating plane wave. The physical mechanism of this surprising phenomenon is unveiled. It relies on the excitation of opposite and in phase modes. Furthermore, balancing of the fundamental modes of the system permits to extinguish the dipolar moment of a metallic particle.

Citation Download Citation

Nicolas Bonod, Alexis Devilez, and Brian Stout "Straightforward control of light in a metallic trimer", Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 77570E (10 September 2010); https://doi.org/10.1117/12.860549

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