Browsing by Author "Unalan, Husnu Emrah"
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Article Citation Count: 8Enhanced second harmonic generation from coupled asymmetric plasmonic metal nanostructures(Iop Publishing Ltd, 2015) Yıldız, Bilge Can; Tasgin, Mehmet Emre; Abak, Musa Kurtulus; Coskun, Sahin; Unalan, Husnu Emrah; Bek, Alpan; Airframe and Powerplant MaintenanceWe 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.