[ Back to EurekAlert! ]

Contact: Neil Schoenherr
nschoenherr@wustl.edu
314-935-5235
Washington University in St. Louis

Optical Diode

Caption: In an optical diode, the light input in one direction is transmitted while the light input in the opposite direction is blocked. The new optical diode is made from parity-time (PT) symmetric microresonators in which loss of one of the resonators is balanced by the gain in the other. Breaking the PT-symmetry, by tuning the coupling strength between the resonators, leads to strong field localization and hence enables nonlinearity-based one-way transmission for light.

Credit: Lan Yang

Usage Restrictions: None

Related news release: Groundbreaking optical device could enhance optical information processing, computers


[ Back to EurekAlert! ]