Dipole limit in second-harmonic generation from arrays of gold nanoparticles
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Tiedostot
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URN:
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http://URN.fi/URN:NBN:fi:tty-201210191320
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Nimeke:
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Dipole limit in second-harmonic generation from arrays of gold nanoparticles |
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Tekijä:
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Czaplicki, Robert; Zdanowicz, Mariusz; Koskinen, Kalle; Laukkanen, Janne; Kuittinen, Markku; Kauranen, Martti |
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Julkaisun tyyppi:
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Artikkeli - Article |
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Julkaisuaika:
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2012 |
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DOI:
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http://dx.doi.org/10.1364/OE.19.026866
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Kuvaus:
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This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-19-27-26866. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
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Yliopisto:
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Tampereen teknillinen yliopisto - Tampere University of Technology |
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Tiedekunta:
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Luonnontieteiden ja ympäristötekniikan tiedekunta – Faculty of Science and Environmental Engineering |
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Laitos:
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Fysiikan laitos – Department of Physics |
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Tiivistelmä:
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We present a multipolar tensor analysis of second-harmonic generation from arrays of noncentrosymmetric gold nanoparticles. In contrast to earlier results, where higher multipoles and symmetry-forbidden signals arising from sample defects play a significant role, the present results are completely dominated by symmetry-allowed electric-dipole tensor components. The result arises from significant improvement in sample quality, which suppresses the higher-multipole effects and enhances the overall response by an order of magnitude. The results are a prerequisite for metamaterials with controllable nonlinear properties. |
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Tekijänoikeudet:
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This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. |
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