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Diffractive chains of plasmonic nanolenses: combining near-field focusing and collective enhancement mechanisms |
Optics Letters, Vol. 37, Issue 22, pp. 4624-4626 (2012)
http://dx.doi.org/10.1364/OL.37.004624
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Abstract
We study, by means of full-electrodynamic calculations using the layer-multiple-scattering method, the effect of diffractive coupling on the enhancement of the local electromagnetic field in periodic arrays of nanolenses consisting of three silver spheres with progressively decreasing sizes and separations. The interaction between the hot-spot modes of an isolated nanolens with the Rayleigh–Wood anomalies of the periodic lattice leads to a further enhancement of the local field intensity, which can be controlled by an appropriate choice of the geometrical parameters involved.
© 2012 Optical Society of America
OCIS Codes
(050.1965) Diffraction and gratings : Diffractive lenses
(050.5298) Diffraction and gratings : Photonic crystals
(250.5403) Optoelectronics : Plasmonics
ToC Category:
Diffraction and Gratings
History
Original Manuscript: July 12, 2012
Revised Manuscript: September 21, 2012
Manuscript Accepted: September 28, 2012
Published: November 6, 2012
Citation
E. Almpanis, N. Papanikolaou, B. Auguié, C. Tserkezis, and N. Stefanou, "Diffractive chains of plasmonic nanolenses: combining near-field focusing and collective enhancement mechanisms," Opt. Lett. 37, 4624-4626 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-22-4624
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