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Authors
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Reichenbach, P. ; Eng, L. M. ; Georgi, U. ; Voit, B.
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Title
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3D-steering of superfocusing of second-harmonic radiation through plasmonic nano antenna arrays
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Date
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08.08.2012
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Number
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33024
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Abstract
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Second-harmonic generation (SHG) of light at nanoparticles provides the possibility to generate light (of a desired frequency) in-situ instead of introducing it by focusing an external light beam. Our theoretical study provides steering SHG light through the superposition of the radiation from a number of nanoparticles which are arranged in a circle. The authors assume cone-shaped or rod-shaped nanoparticles. Their radiation can be modeled as radiating dipoles. The superposition of their fields yields a hot spot with a full width at half-maximum of around 100 nm. Even more important, the position of the hot spot within the circular arrangement of nanoantennas can be adjusted in the xy plane simply by changing the incident angle of the exciting beam. © 2012 Laser Institute of America
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Publisher
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Journal of Laser Applications
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Wikidata
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Citation
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Journal of Laser Applications 24 (2012) 042005 (7 pages)
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DOI
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https://doi.org/10.2351/1.4712171
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Tags
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antenna arrays nanoparticles nanophotonics optical focusing optical harmonic generation nano-optics second-harmonic generation constructive interference shg superposition photochemical writing laser photo metal-surfaces centrosymmetric material generation
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