Nanoengineering the second order susceptibility in semiconductor quantum dot heterostructures

Marcin Zielinski, Shoshana Winter, Radoslaw Kolkowski, Claude Nogues, Dan Oron, Joseph Zyss, Dominique Chauvat

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


We study second-harmonic generation from single CdTe/CdS core/shell rod-on-dot nanocrystals with different geometrical parameters, which allow to fine tune the nonlinear properties of the nanostructure. These hybrid semiconductor-semiconductor nanoparticles exhibit extremely strong and stable second-harmonic emission, although the size of CdTe core is still within the strong quantum confinement regime. The orientation sensitive polarization response is analyzed by means of a pointwise additive model of the third-order tensors associated to the nanoparticle components. These findings prove that engineering of semiconducting complex heterostructures at the single nanoparticle scale can lead to extremely bright nanometric nonlinear light sources.

Original languageEnglish
Pages (from-to)6657-6670
Number of pages14
JournalOptics express
Issue number7
Publication statusPublished - Mar 28 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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