Laser devices based on one- and two-photon pumped semiconductor core-shell quantum dots

I. Fortunati, S. Gardin, F. Todescato, R. Signorini, R. Bozio, J. J. Jasieniak, A. Martucci, Gioia Della Giustina, A. Pistore, G. Brusatin, M. Guglielmi, M. Prasciolu, F. Romanato

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4 Citations (Scopus)

Abstract

Highly luminescent CdSe-ZnS core-shell nanocrystals are utilized as dopant within ZrO2 and HfO2 hybrid sol-gel matrices. The emission properties of these hybrid materials are studied upon one- and two-photon excitation by fs laser pulses. Under these optical pumping regimes, lowthreshold amplified stimulated emission is observed. Furthermore, the optical gain characteristics of these QD hybrid materials within 1D and 2D distributed feedback laser architectures are explored.

Original languageEnglish
Pages (from-to)73-86
Number of pages14
JournalNonlinear Optics Quantum Optics
Volume41
Issue number1
Publication statusPublished - 1 Dec 2010
Externally publishedYes

Keywords

  • DFB laser
  • Imprinting
  • Lithography
  • Quantum dots
  • Sol-gel
  • Two-photon absorption
  • Up-converted Lasing

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