Yıldız, Bilge CanYildiz, Bilge CanTasgin, Mehmet EmreAbak, Musa KurtulusCoskun, SahinUnalan, Husnu EmrahBek, AlpanAirframe and Powerplant Maintenance2024-07-052024-07-05201582040-89782040-898610.1088/2040-8978/17/12/1250052-s2.0-84947982953https://doi.org/10.1088/2040-8978/17/12/125005https://hdl.handle.net/20.500.14411/811Bek, Alpan/0000-0002-0190-7945; Yildiz, Bilge Can/0000-0002-3256-8173; Tasgin, Mehmet Emre/0000-0001-8483-6881; Unalan, Husnu/0000-0003-3667-179XWe 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.eninfo:eu-repo/semantics/openAccessFano resonancesecond harmonic generationplasmonsnonlinear opticsenhancementArticleQ3Q21712WOS:000366375700008