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@ARTICLE{Marzban:910693,
      author       = {Marzban, Bahareh and Seidel, Lukas and Kiyek, Vivien and
                      Liu, Teren and Zöllner, Marvin and Ikonic, Zoran and
                      Capellini, Giovanni and Buca, Dan and Schulze, Jörg and
                      Oehme, Michael and Witzens, Jeremy},
      editor       = {Reed, Graham T. and Knights, Andrew P.},
      title        = {{M}odeling and design of an electrically pumped
                      {S}i{G}e{S}n microring laser},
      journal      = {SPIE reviews},
      volume       = {12006},
      issn         = {1946-3251},
      address      = {Boca Raton, Fla.},
      reportid     = {FZJ-2022-04065},
      pages        = {9},
      year         = {2022},
      abstract     = {We present a suspended SiGeSn microring laser design that
                      enables strain relaxation of the material layer stack,
                      electrical pumping and adequate heat sinking. Using both
                      strain and composition as two degrees of freedom to engineer
                      the band structure, a direct bandgap is obtained in the gain
                      material of a double heterostructure layer stack, and the L-
                      to Γ-valley energy difference increased to 78 meV, by
                      $66\%$ compared to a non-underetched structure. The
                      temperature dependent current threshold is modeled for the
                      designed device and determined to be 18 kA/cm2 at 50 K. The
                      fabrication process is outlined and first experimental
                      electroluminescence results indicating the effectiveness of
                      our approach are reported. At the time this proceedings
                      paper is being submitted, electrically pumped lasing has
                      also been achieved with a similar structure, with results
                      that will be reported in a future publication.},
      month         = {Jan},
      date          = {2022-01-22},
      organization  = {Silicon Photonics XVII, San Francisco
                       (United States), 22 Jan 2022 - 28 Feb
                       2022},
      cin          = {IEK-1 / PGI-9},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)PGI-9-20110106},
      pnm          = {5234 - Emerging NC Architectures (POF4-523)},
      pid          = {G:(DE-HGF)POF4-5234},
      typ          = {PUB:(DE-HGF)8 / PUB:(DE-HGF)16},
      UT           = {WOS:000831668100019},
      doi          = {10.1117/12.2609537},
      url          = {https://juser.fz-juelich.de/record/910693},
}