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  Resonant Enhancement of Second-Harmonic Generation in the Mid-Infrared Using Localized Surface Phonon Polaritons in Subdiffractional Nanostructures

Razdolski, I., Chen, Y., Giles, A. J., Gewinner, S., Schöllkopf, W., Hong, M., et al. (2016). Resonant Enhancement of Second-Harmonic Generation in the Mid-Infrared Using Localized Surface Phonon Polaritons in Subdiffractional Nanostructures. Nano Letters, 16(11), 6954-6959. doi:10.1021/acs.nanolett.6b03014.

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1607.05158.pdf (Preprint), 525KB
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arXiv:1607.0518v2 {[physics.optics] 19 Jul 2016
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2017
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Razdolski, Ilya1, Autor           
Chen, Yiguo2, 3, Autor
Giles, Alexander J.4, Autor
Gewinner, Sandy5, Autor           
Schöllkopf, Wieland5, Autor           
Hong, Minghui3, Autor
Wolf, Martin1, Autor           
Giannini, Vincenzo2, Autor
Caldwell, Joshua D.4, Autor
Maier, Stefan A.2, Autor
Paarmann, Alexander1, Autor           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
2The Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom, ou_persistent22              
3Department of Electrical and Computer Engineering, National University of Singapore, 117583 Singapore, ou_persistent22              
4U.S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, D.C. 20375, United States, ou_persistent22              
5Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              

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 Zusammenfassung: We report on the strong enhancement of mid-infrared second-harmonic generation (SHG) from SiC nanopillars due to the resonant excitation of localized surface phonon polaritons within the Reststrahlen band. A strong dependence of the SHG enhancement upon the optical mode distribution was observed. One such mode, the monopole, exhibits an enhancement that is beyond what is anticipated from field localization and dispersion of the linear and nonlinear SiC optical properties. Comparing the results for the identical nanostructures made of 4H and 6H SiC polytypes, we demonstrate the interplay of localized surface phonon polaritons with zone-folded weak phonon modes of the anisotropic crystal. Tuning the monopole mode in and out of the region where the zone-folded phonon is excited in 6H-SiC, we observe a further prominent increase of the already enhanced SHG output when the two modes are coupled. Envisioning this interplay as one of the showcase features of mid-infrared nonlinear nanophononics, we discuss its prospects for the effective engineering of nonlinear-optical materials with desired properties in the infrared spectral range.

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 Datum: 2016-09-262016-07-202016-10-212016-11-09
 Publikationsstatus: Erschienen
 Seiten: 6
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1021/acs.nanolett.6b03014
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Titel: Nano Letters
  Kurztitel : Nano Lett.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Washington, DC : American Chemical Society
Seiten: 6 Band / Heft: 16 (11) Artikelnummer: - Start- / Endseite: 6954 - 6959 Identifikator: ISSN: 1530-6984
CoNE: https://pure.mpg.de/cone/journals/resource/110978984570403