Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theoretical Modeling for the Interaction of Tin alloying with N-Type
  Doping and Tensile Strain for GeSn Lasers   We investigate the interaction of tin alloying with tensile strain and n-type
doping for improving the performance of a Ge-based laser for on-chip optical
interconnects. Using a modified tight-binding formalism that incorporates the
effect of tin alloying on conduction band changes, we calculate how threshold
current density and slope efficiency are affected by tin alloying in the
presence of tensile strain and n-type doping. Our results show that while there
exists a negative interaction between tin alloying and n-type doping, tensile
strain can be effectively combined with tin alloying to dramatically improve
the Ge gain medium in terms of both reducing the threshold and increasing the
expected slope efficiency. Through quantitative modeling we find the best
design to include large amounts of both tin alloying and tensile strain but
only moderate amounts of n-type doping if researchers seek to achieve the best
possible performance in a Ge-based laser.

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The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
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The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
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The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
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The categories of this paper are: eess
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The categories of this paper are: acc-phys