Artistic depiction of a single erbium ion being implanted into a silicon-based optical nanocavity. (IMAGE)

Helmholtz-Zentrum Dresden-Rossendorf

Artistic depiction of a single erbium ion being implanted into a silicon-based optical nanocavity.

Caption

A focused ion beam (top) delivers individual Erbium ions with nanometer precision, while a laser (left) laterally couples light into the nanocavity to excite the ion. The excited erbium ion emits single photons in the telecom C-band, enabling scalable quantum light sources compatible with existing fiber networks.

Credit

B. Schröder/HZDR

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