Enhanced second harmonic generation from coupledasymmetric plasmonic metal nanostructures

Date

2017-02-02

Author

Yıldız Karakul, Bilge Can
Taşgın, Mehmet Emre
Abak, M Kurtuluş
Coşkun, Şahin
Ünalan, Hüsnü Emrah
Bek, Alpan

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https://hdl.handle.net/11511/87158

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Enhanced second harmonic generation from coupled asymmetric plasmonic metal nanostructures Yıldız, Bilge Can; Taşgın, Mehmet Emre; Abak, Musa Kurtuluş; Coskun, Sahin; Ünalan, Hüsnü Emrah; Bek, Alpan (IOP Publishing, 2015-12-01) We experimentally demonstrate that two coupled metal nanostructures (MNSs), a silver nanowire and bipyramid, can produce similar to 30 times enhanced second harmonic generation compared to the particles alone. We develop a simple theoretical model, presenting the path interference effects in the nonlinear response of coupled MNSs. We show that the reason for such an enhancement can be the occurrence of a Fano resonance due to the coupling of the converter MNS to the long-lived mode of the attached MNS.
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Citation Formats

B. C. Yıldız Karakul, M. E. Taşgın, M. K. Abak, Ş. Coşkun, H. E. Ünalan, and A. Bek, “Enhanced second harmonic generation from coupledasymmetric plasmonic metal nanostructures,” 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/87158.