Abstract
We theoretically study the cascaded four-wave mixing (FWM) in broadband tapered plasmonic nanoantennas. In comparison with nonlinear bulk medium they demonstrate a 300-fold increase in nonlinear frequency conversion detected in the main lobe of the nanoantenna far-field pattern. This is achieved by tuning the elements of the nanoantenna to resonance frequencies involved in the FWM interaction. Our findings have a potentially broad application in ultrafast nonlinear spectroscopy, sensing, on-chip optical frequency conversion, nonlinear optical metamaterials, and photon sources.
Original language | English |
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Pages (from-to) | 79-81 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 38 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 2013 |