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Silencing and enhancement of second-harmonic generation in optical gap antennasJohann Berthelot, Guillaume Bachelier, Mingxia Song, Padmnabh Rai, Gérard Colas des Francs, Alain Dereux, and Alexandre Bouhelier »View Author Affiliations
Johann Berthelot,1,2
Guillaume Bachelier,3,4
Mingxia Song,1
Padmnabh Rai,1
Gérard Colas des Francs,1
Alain Dereux,1
and Alexandre Bouhelier1,*
1Laboratoire Interdisciplinaire Carnot de Bourgogne CNRS-UMR 6303, Université de Bourgogne, 21078 Dijon, France 2Now at ICFO, The Institute of Photonic Sciences, Av. Carl Friedrich Gauss, 3, 08860 Castelldefels (Barcelona) Spain 3Laboratoire de Spectrométrie Ionique et Moléculaire, CNRS-UMR 5579, Université Claude Bernard Lyon 1, 69622 Villeurbanne, France 4Institut Néel, CNRS-UPR 2940, 38042 Grenoble cedex, France *Corresponding author: alexandre.bouhelier@u-bourgogne.fr |
Optics Express, Vol. 20, Issue 10, pp. 10498-10508 (2012)
http://dx.doi.org/10.1364/OE.20.010498
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Abstract
Amplifying local electromagnetic fields by engineering optical interactions between individual constituents of an optical antenna is considered fundamental for efficient nonlinear wavelength conversion in nanometer-scale devices. In contrast to this general statement we show that high field enhancement does not necessarily lead to an optimized nonlinear activity. In particular, we demonstrate that second-harmonic responses generated at strongly interacting optical gap antennas can be significantly suppressed. Numerical simulations are confirming silencing of second-harmonic in these coupled systems despite the existence of local field amplification. We then propose a simple approach to restore and amplify the second-harmonic signal by changing the manner in which electrically-connected optical antennas are interacting in the charge-transfer plasmon regime. Our observations provide critical design rules for realizing optimal structures that are essential for a broad variety of nonlinear surface-enhanced characterizations and for realizing the next generation of electrically-driven optical antennas.
© 2012 OSA
OCIS Codes
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(240.4350) Optics at surfaces : Nonlinear optics at surfaces
(180.4315) Microscopy : Nonlinear microscopy
ToC Category:
Nonlinear Optics
History
Original Manuscript: February 8, 2012
Revised Manuscript: March 20, 2012
Manuscript Accepted: April 1, 2012
Published: April 23, 2012
Virtual Issues
Vol. 7, Iss. 7 Virtual Journal for Biomedical Optics
Citation
Johann Berthelot, Guillaume Bachelier, Mingxia Song, Padmnabh Rai, Gérard Colas des Francs, Alain Dereux, and Alexandre Bouhelier, "Silencing and enhancement of second-harmonic generation in optical gap antennas," Opt. Express 20, 10498-10508 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-20-10-10498
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Lamprecht, B.
Larson, T.
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Leitenstorfer, A.
Leitner, A.
Lerondel, G.
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Li, K.
Lim, A. K. L.
Linden, S.
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Lopez, R.
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Pohl, D. W.
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Siikanen, R.
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Smith, D. K.
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Stahlmecke, B.
Stockman, M. I.
Sundaramurthy, A.
Taminiau, T. H.
Toussaint, C.
Träutlein, D.
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Wang, H.
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Weinmann, P.
Wiederrecht, G. P.
Wild, B.
Wu, Y.
Zabala, N.
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- A. Bouhelier, M. Beversluis, and L. Novotny, “Characterization of nanoplasmonic structures by locally excited photoluminescence,” Appl. Phys. Lett.82, 5041–5043 (2003). [CrossRef]
- A. Bouhelier, M. Beversluis, A. Hartschuh, and L. Novotny, “Near-field second-harmonic generation induced by local field enhancement,” Phys. Rev. Lett.90, 013903 (2003). [CrossRef] [PubMed]
- J.-S. Huang, J. Kern, P. Geisler, P. Weinmann, M. Kamp, A. Forchel, P. Biagioni, and B. Hecht, “Mode imaging and selection in strongly coupled nanoantennas,” Nano Lett.10, 2105–2110 (2010). [CrossRef] [PubMed]
- M. Finazzi, P. Biagioni, M. Celebrano, and L. Duò, “Selection rules for second-harmonic generation in nanoparticles,” Phys. Rev. B76, 125414 (2007). [CrossRef]
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Appl. Phys. B
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Appl. Phys. Lett
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Appl. Phys. Lett.
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IEEE Trans. Nanotech.
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J. Opt. Soc. Am. B
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J. Phys. Chem. B
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J. Phys: Cond. Mat
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