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Second harmonic generation spectroscopy on hybrid plasmonic/dielectric nanoantennas
Light: Science & Applications
Plasmonic nanoantennas provide unprecedented opportunities to concentrate light fields in subwavelength-sized volumes. By placing a nonlinear dielectric nanoparticle in such a hot spot, one can hope to take advantage of both the field enhancement provided by nanoantennas and the large, nonlinear optical susceptibility of dielectric nanoparticles. To test this concept, we combine gold gap nanoantennas with second-order, nonlinear zinc sulfide nanoparticles, and perform second harmonic generationdoi:10.1038/lsa.2016.13 pmid:30167115 fatcat:7neom6rafnd4paixgb6bm2rhum