Saturation and self-lensing in self-assembled quantum dots with constant-wave driving

Tierno, A. and Ackemann, T. and Maggipinto, T. and Brambilla, M.G. (2009) Saturation and self-lensing in self-assembled quantum dots with constant-wave driving. Physical Review B, 80 (3). 035314. ISSN 1098-0121 (https://doi.org/10.1103/PhysRevB.80.035314)

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Abstract

The nonlinear optical response of self-assembled quantum dots to cw driving is analyzed via numerical simulations of a spatially resolved rate equation model. The saturation is shown to follow a behavior in between the one for a dominantly, homogeneously, and inhomogeneously broadened medium. Self-lensing is suggested to probe the refractive-index nonlinearities and to open a complementary way of characterizing phase-amplitude coupling (alpha factor) in quantum-dots samples. For conservative assumptions on current samples the minimum focal length is predicted to be +/-1.7 mm for an input beam with 15 mu m radius at a detuning of 1.1 inhomogeneous linewidths from gain center.

ORCID iDs

Tierno, A., Ackemann, T. ORCID logoORCID: https://orcid.org/0000-0003-2727-7395, Maggipinto, T. and Brambilla, M.G.;
  • Item type:Article
    ID code:19028
    Dates:
    Date
    Event
    July 2009
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:25 May 2010 10:49
    Last modified:11 Nov 2024 09:26
    URI:https://strathprints.strath.ac.uk/id/eprint/19028
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