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Search: WFRF:(Gullino Alberto)

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1.
  • Tibaldi, Alberto, et al. (author)
  • Analysis of Carrier Transport in Tunnel-Junction Vertical-Cavity Surface-Emitting Lasers by a Coupled Nonequilibrium Green's Function-Drift-Diffusion Approach
  • 2020
  • In: Physical Review Applied. - 2331-7019. ; 14:2
  • Journal article (peer-reviewed)abstract
    • This work investigates carrier transport in tunnel junctions for vertical-cavity surface-emitting lasers (VCSELs). The study is performed with a quantum-corrected semiclassical approach, where tunneling is described rigorously with a nonequilibrium Green's function formalism based on a multiband description of the electronic structure. Validated with experimental results, the proposed approach provides a quantum -kinetic perspective of the tunneling process and paves the way toward a comprehensive theory of VCSELs, bridging the gap between semiclassical and quantum simulations.
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2.
  • Tibaldi, Alberto, et al. (author)
  • Modeling Tunnel Junctions for VCSELs: A Self-Consistent NEGF-DD Approach
  • 2020
  • In: Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD. - 2158-3234. ; 2020-September, s. 67-68
  • Conference paper (peer-reviewed)abstract
    • In this work we investigate carrier transport in tunnel junctions for vertical-cavity surface-emitting lasers by a novel self-consistent simulation framework for semiconductor quantum devices. Based on a Poisson-drift-diffusion foundation, in this approach quantum features are described through a nonequilibrium Green's function formalism. The simulator is validated through a comparison with experimental results.
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