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Hybridized nanostructures composed by metals and dielectrics, semiconductors or organics offer new opportunities achieving new functionalities in nonlinear optics, plasmonics, sensing [1-4]. In particular GaAs-AlGaAs-GaAs core-shell-supershell nanowires (NWs) fabricated by self-catalyzed growth on Si substrates were partially covered with gold, thus producing a symmetry breaking in the sample geometry...
Lithium niobate (LiNbO3) is a unique crystal that demonstrates a large range of properties such as photo-refractivity, electro-optical effect and piezoelectricity. Besides, the LiNbO3 crystal also possesses strong nonlinear optical properties, which are maintained in subwavelength structures such as nanowires. Thus, LiNbO3 nanowires and microwires are demonstrated to generate and guide the second-harmonic...
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