Abstract
We demonstrate electrically driven nonreciprocity on a silicon chip. By achieving an indirect interband photonic transition, we show that the transmission coefficients between two single-mode waveguides become dependent on the propagation directions only in the presence of the electrical drive. Our structure is characterized by a nonsymmetric scattering matrix identical to a linear magneto-optical device.
- Received 27 March 2012
DOI:https://doi.org/10.1103/PhysRevLett.109.033901
© 2012 American Physical Society
Viewpoint
Not Every Exit is an Entrance
Published 16 July 2012
Experiments demonstrate a new way to prevent light from retracing its steps, which could potentially be integrated with other components on a chip to process optical information.
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