Abstract: Photodetectors configured to detect light in a particular wavelength range and including a quaternary material are described herein. In some embodiments, the present invention may be directed to a photodetector that includes a collector material that is substantially transparent to the particular wavelength range and a quaternary material adjacent to the collector material, where the quaternary material functions as an absorber material and is lattice-matched to the collector material. A conduction band difference between the collector material and the quaternary material may be approximately zero. Additionally, or alternatively, the photodetector may include a peripheral layer adjacent to the quaternary material, where the peripheral layer is doped with carbon. In some embodiments, the photodetector may include an optical window configured for use with a multi-mode optical fiber.

Abstract: Processes for continuous compositional grading for realization of low charge carrier barriers in electro-optical heterostructure semiconductor devices are provided. An example process includes forming, onto one or more semiconductor layers of an electro-optical semiconductor device, a first semiconductor layer associated with a first bandgap value and forming, onto the first semiconductor layer, a grading layer associated with a continuous compositional grading. The example method further includes forming, onto the grading layer, a second semiconductor layer associated with a second bandgap value. The second bandgap value is different than the first bandgap value.

Abstract: A pull rod device arrangement of a brake caliper includes a pull rod top, a pull rod bottom, and two vertical rods, wherein the pull rod top and the pull rod bottom of the pull rod device are connected to each other. The pull rod top and the pull rod bottom of the pull rod device are designed as separate parts. A brake caliper includes the pull rod device.

Abstract: Various embodiments provide a PIN-photodetector configured to detect light characterized by a particular wavelength range. The photodetector includes an absorber region including a material having an absorption coefficient of greater than 104 cm?1 in the particular wavelength range. The absorber region has an absorber thickness in a direction that is substantially parallel to a detection axis of the photodetector. The photodetector further includes a collector region including a material that is substantially transparent to the particular wavelength range. The collector region has a collector thickness in the direction that is substantially parallel to the detection axis. The collector thickness is greater than the absorber thickness. The absorber region does not spatially overlap with the collector region. The photodetector is configured to operate at a bandwidth of at least 50 GHz.

Abstract: A pull rod device arrangement of a brake calliper includes a pull rod top, a pull rod bottom, and two vertical rods, wherein the pull rod top and the pull rod bottom of the pull rod device are connected to each other. The pull rod top and the pull rod bottom of the pull rod device are designed as separate parts. A brake caliper includes the pull rod device.