Domain formation and self-sustained oscillations in quantum cascade lasers
classification
⚛️ physics.app-ph
nlin.PS
keywords
oscillationscascadedomainselectricfieldlasersquantumbecome
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We study oscillations in quantum cascade lasers due to traveling electric field domains, which are observed both in simulations and experiments. These oscillations occur in a range of negative differential resistance and we clarify the condition determining whether the boundary between domains of different electric field can become stationary.
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