Quantum dots perform well under mechanical constraints

Over the past several years, the application of mechanical constraints to semiconducting quantum dots has been broadly used to fine-tune the dots’ emission wavelength to create single-photon sources, for example.

Researchers at INAC integrated several InAs quantum dots into a GaAs nanowire coated with an amorphous silicon shell to create quantum dots deformed along their growth axis. This heretofore-unexplored configuration resulted in significant emission gaps that were very similar from one emitter to another. Reproducibility is a key benefit for designing and building complex photonic circuits that integrate several tunable quantum emitters.

Contact: julien.claudon@cea.fr

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