We offer epitaxial semiconductor growth of phosphide and arsenide material, various characterization methods and technical advice on fabrication of optoelectronic devices.
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Our products include semiconductor structures for laser applications in a large wavelength range from orange to infrared.
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We combine innovative laser concepts with the latest semiconductor fabrication technology for high-performance devices.
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As a spin-off from the University of Stuttgart, Twenty-One Semiconductors has longstanding experience in semiconductor growth and laser engineering.
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Semiconductors
Stable fundamental mode locking of a red-emitting VECSEL has been demonstrated in a Z-shaped cavity!
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Events
21S is now part of the Meisterklasse!
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Events
Twenty-One Semiconductors is visiting this year's Photonics West trade show in San Francisco. We are looking forward to meet our partners and customers and discover new innovative developments in the fields of laser technology.
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