Quantum cascade laser structure
An inventive quantum cascade laser structure comprises a number cascades (100), each comprising a number of alternately arranged quantum well layers (110a-110j) and barrier layers (105-105J). Both the material at least one quantum well layer (110a-110j) and the material at least one barrier layer (105-105J) is under mechanical stress, which may be the appropriate voltage, a train or compressive stress. The quantum well layers (110a-110j) and barrier layers (105-105J) are in the novel quantum cascade laser structure to one another such that existing tensions compensate within a cascade (100) largely;. In the novel quantum cascade Laser structure, the material of the quantum well layers (110a-110j), only one material component and the material at least one of the barrier layers (105d, 105e, 105f) at least two material components (111a, 111b, 112a, 112b, 113a, 113b) on.
DRESSLER SEBASTIAN [DE]; MASSELINK WILLIAM TED [DE]; SEMTSIV MYKHAYLO PETROVYCH [DE]; GEORGIEV NIKOLAI [DE]; HELM MANFRED [DE];
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