Graphene/WSe2 (2-D material)/graphene heterostructure. Credit: ICFO-Fabien Vialla
A 2D crystal, combined with graphene, has the capability to detect optical pulses with a response faster than 10 picoseconds, while maintaining a high efficiency, a new study demonstrates. Ultra-fast detection of light lies at the heart of optical communication systems nowadays. Driven by the internet of things and 5G, data communication bandwidth is growing exponentially, thus requiring even faster optical detectors that can be integrated into photonic circuits.
Prof Frank Koppens’s team has shown that a 2D crystal, combined with graphene, has the capability to detect optical pulses with a response faster than 10 picoseconds, while maintaining a high efficiency...
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