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FBH presents high-performance semiconductor light sources at Photonics West 2024
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At Photonics West 2024 in San Francisco (USA), the Ferdinand-Braun-Institut (FBH) will be presenting novel and advanced diode lasers and UV light-emitting diodes (LEDs). FBH will be participating in…
Neues Raman-Sensor-System für die medizinische Diagnostik wird klinisch geprüft
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Die Thiem-Research GmbH in Cottbus hat mit der klinischen Erprobung eines neuartigen kompakten Raman-Sensor-Systems aus dem FBH begonnen. Rund 50 Proband*innen haben bislang teilgenommen, weitere…
Diamonds and quantum physics – inaugural lecture by Tim Schröder
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Ever heard about quantum internet? No? Then Prof. Dr. Tim Schröder's inaugural lecture on February 6, 2024 is the ideal opportunity to find out more. In his lecture "Quantum physics and technology…
Improved far-UVC LEDs: investigations reveal causes of unwanted UVA radiation
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High-resolution spatial measurements uncovered the origin of unwanted parasitic emission at long wavelengths from UVC LEDs. We are now able to implement targeted changes to the manufacturing process,…
Tunnel diode-based distributed feedback (DFB) broad-area diode lasers with excellent results for LiDAR applications
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For the first time, FBH has developed wavelength-stabilized DFB broad-area lasers with multiple epitaxially stacked active regions and tunnel junctions. They are designed for emission around…
Advanced in-situ etch depth control for dry etching processes – to achieve optimum device perfor-mance
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Sophisticated etch processes are required to fabricate high-power diode lasers with excellent performance. We explain exemplarily how to control the etch depth in-situ and why the measuring…
Targeting 6G applications in the sub-THz range – advanced InP bipolar transistor process
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Joint research activities between University of Duisburg-Essen and FBH yield improved performance of InP-based technologies. These rely on optimized epitaxial material and novel process techniques.…
Textile material identification using Shifted Excitation Raman Difference Spectroscopy
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Raman spectroscopy can determine the chemical composition of textile samples. We use an in-house developed 785 nm dual-wavelength diode laser to successfully distinguish between dyed and undyed…
Chip-integrated solution based on diamond NV centers – enabling compact magnetic field cameras with simplified measuring principle
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Imaging weak magnetic fields as produced by electric pulses that propagate through nerves requires complex and expensive devices. With our on-chip multi-pixel sensor, we have developed a novel…
Vertical high-voltage GaN-based pn-diodes on foreign and native substrates – targeting next-generation power electronics
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Achieving high blocking strength and low on-state resistance simultaneously is essential for efficient power electronic converters. The relationship between blocking strength, thick epitaxial drift…