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Overgrowth of trenches with (AlGa)As using metalorganic vapor-phase epitaxy (MOVPE)
/en/research/publications/overgrowth-of-trenches-with-algaas-using-metalorganic-vapor-phase-epitaxy-movpe
A detailed study of the regrowth of (AlGa)As over trenches etched into (InGa)P, an important step in the fabrication of index-guided laser structures, is presented. The resulting Al concentration…
MOVPE growth of tunable DBR laser diode emitting at 1060 nm
/en/research/publications/movpe-growth-of-tunable-dbr-laser-diode-emitting-at-1060-nm
Tunable laser diodes emitting at 1060 nm have been grown by metalorganic vapor-phase epitaxy (MOVPE). For the growth of the highly strained InGaAs/GaAs quantum well (QW) high growth rates are found…
Ordering in GaxIn1-xAsyP1-y grown on GaAs by metalorganic vapour-phase epitaxy
/en/research/publications/ordering-in-gaxin1-xasyp1-y-grown-on-gaas-by-metalorganic-vapour-phase-epitaxy
We have investigated ordering behaviour in MOVPE-grown GaInAsP lattice-matched to GaAs using luminescence and diffraction methods. Our observations indicate that the occurrence of ordering variants…
X-ray characterization of an Esaki-Tsu superlattice and transport properties
/en/research/publications/x-ray-characterization-of-an-esaki-tsu-superlattice-and-transport-properties
We have studied, by x-ray scattering, structural parameters of a short-period GaAs/AlAs superlattice and related the parameters to electric transport properties. Our results, for a superlattice…
Characterization of Laser Structures by EBIC Measurements and Simulation
/en/research/publications/characterization-of-laser-structures-by-ebic-measurements-and-simulation
The electron beam induced current (EBIC) profiles of laser structures based on InGaAsP/InGaP/GaAs show a main peak and an additional shoulder or peak. To understand this phenomenom EBIC profiles at…
Publications
/en/research/publications/in-situ-characterization-of-strain-distribution-in-broad-area-high-power-lasers-under-operation-by-high-resolution-x-ray-diffraction-and-topography-using-synchrotron-radiation-1
Shift and shape of grating diffracted beams
/en/research/publications/shift-and-shape-of-grating-diffracted-beams
The grating diffraction of beams is theoretically investigated by applying an electromagnetic method (the Integral Equation System Method with Parametrization of the grating profile = IESMP) to their…
Beam propagation in an active planar waveguide with an angled bragg grating (α laser)
/en/research/publications/beam-propagation-in-an-active-planar-waveguide-with-an-angled-bragg-grating-alpha-laser
In the angled Bragg grating semiconductor laser (α laser), light does not propagate at a right angle with respect to the two-dimensional corrugated grating of the planar waveguide. A closed-form…
Zonal diffraction efficiencies and imaging of micro-Fresnel lenses
/en/research/publications/zonal-diffraction-efficiencies-and-imaging-of-micro-fresnel-lenses
The dependence of the zonal efficiency of a transmission Fresnel lens on the number of quantization levels and on the polarization of the light, without and with an antireflection (AR) overcoating is…
Photoluminescence on ordered GaxIn1-xAsyP1-y
/en/research/publications/photoluminescence-on-ordered-gaxin1-xasyp1-y
Photoluminescence of Ga0.54In0.46As0.12P0.88 layers grown by metalorganic vapor phase epitaxy on differently oriented GaAs substrates has been investigated. Valence-band splitting due to symmetry…