Scattering processes in quantum dot devices with the example of an amplifier
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Date
2010-03-03T07:31:21Z
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Abstract
All experiments performed in this work deal with a device that is a quantum
dot based semiconductor optical amplifier. This chapter explains why especially
InAs quantum dots in a waveguide were chosen to perform them. In addition
all basics necessary to understand the experimental methods, the setup and the
models will be described.
The first section will deal with semiconductors and the special terminology
used for describing them. After that the advantages of quantum dots in comparison
to other semiconductor nanostructures are clarified.
In the third section the device itself is focused, the Semiconductor Optical
Amplifier (SOA) and its characteristics. First the design will be discussed then
the optical characteristics.
The performed experiments are described in detail in the fourth section of this
chapter. Both the technical setup and the used methods will be explained. This
sections is completed with a first characterization of the sample.
At last I introduce the theory necessary for following the models used in
chapter 4 and 5 of this thesis.
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Keywords
SOA, Scattering, Quantum dot, Semiconductor optical amplifier