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The light extraction of LEDs is the biggest challenge for designing high efficient LEDs. Current materials used for LED production show high refractive indices, which results to a back reflection of light at the material/air surface of LEDs. The described invention discloses a structure and material...
Polarization detector with a high degree of integration are for example important for reading of magneto-optical data storage media, which are based on the principle of the magneto-optical Kerr effect, or for optical circuits on a polarization scrambled logic based. The following technology allows...
In integrated optics the multiplexing and demultiplexing of signals is still a challenge and there is need for integrated elements especially in the field of communication.
High quality single-crystalline gallium nitride (GaN) nanowires for high performance semiconductor elements like LEDs today are grown on substrates like aluminum nitride (AlN) or silicon (Si). Since these substrates do not possess a high conductivity additional process steps are necessary to realize...
Strain within heterogenic semiconductor components directly affects their opto-electronic performance and limits the range of possible material combinations. In traditional planar heterostructures formed by a stack of semiconductor films on a substrate material, the strain of each layer is...
The control of light waves through the acousto-optic interaction requires a match in phase between the optical and acoustic waves. In Bragg cells it is achieved by tuning the angle between the acoustic and optical beams in order to obtain constructive interference of the light reflected at the...
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Paul-Drude-Institut für Festkörperelektronik Leibniz-Institut im Forschungsverbund Berlin e.V.
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