Nanocrystal lasing in the single-exciton regime using engineered nonlinear exciton-exciton interactions

V. I. Klimov; S. Ivanov; J. Nanda; I. Bezel; M. Achermann; L. P. Balet

doi:10.1364/NLO.2004.TuC6

Nonlinear Optics: Materials, Fundamentals and Applications
Technical Digest (CD) (Optica Publishing Group, 2004),
paper TuC6
•https://doi.org/10.1364/NLO.2004.TuC6

Nanocrystal lasing in the single-exciton regime using engineered nonlinear exciton-exciton interactions

V. I. Klimov, S. Ivanov, J. Nanda, I. Bezel, M. Achermann, and L. P. Balet

Nonlinear Optics: Materials, Fundamentals and Applications 2004

Waikoloa, Hawaii United States
ISBN: 1-55752-773-3

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Nonlinear Optics in Semiconductors (TuC)

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V. I. Klimov, S. Ivanov, J. Nanda, I. Bezel, M. Achermann, and L. P. Balet, "Nanocrystal lasing in the single-exciton regime using engineered nonlinear exciton-exciton interactions," in Nonlinear Optics: Materials, Fundamentals and Applications, Technical Digest (CD) (Optica Publishing Group, 2004), paper TuC6.

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Abstract

We use inverted ZnSe(core)/CdSe(shell) nanocrystal (NC) heterostructures to study the effect of type I vs. type II carrier localization on lasing performance of NCs. We show that such hetero-NCs can exhibit strong repulsive exciton-exciton interactions, for which lasing is possible in the single-exciton regime at dramatically reduced pump thresholds.

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