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  • 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
  • (Optica Publishing Group, 2017),
  • paper EH_8_2

Mie Resonance Induced Enhancement of Second-Harmonic Generation in Perovskite Nanoparticles

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Abstract

Barium titanate (BaTiO3) is a perovskite crystal, which is transparent over a wide spectral range and has a high refractive index. BaTiO3 is a suitable building block for metamaterials or photonic devices. In addition, BaTiO3 emits a strong second harmonic generation (SHG) signal due to its noncentrosymmetric crystal structure. SHG in nanostructures has potential applications in bio-imaging and lab-on-a-chip applications. BaTiO3 nanoparticles emit a strong bulk SHG signal [1] and are biocompatible. However, SHG decreases strongly with the volume of the nanostructures and means to increase the conversion efficiency are currently being investigated. Here, we demonstrate that the conversion efficiency to SHG is strongly enhanced by means of the Mie resonance [2] of an individual BaTiO3 nanoparticle.

© 2017 IEEE

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