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 E-Mail IMAGE: Schematic of the optical microcavity with 2D semiconductor. The nonlinear optical response arises from the larger Bohr radii Rydberg excitons allowing to push the limit to few photon nonlinear limit. view more  Credit: Image credit: Rezlind Bushati The ability to turn on and off a physical process with just one photon is a fundamental building block for quantum photonic technologies. Realizing this in a chip-scale architecture is important for scalability, which amplifies a breakthrough by City College of New York researchers led by physicist Vinod Menon. They've dem...

A new path toward sending and receiving information with single photons of light has been discovered by an international team of researchers led by the University of Michigan. Their experiment demonstrated the possibility of using an effect known as nonlinearity to modify and detect extremely weak light signals, taking advantage of distinct changes to a quantum system to advance next generation computing. Today, as silicon-electronics-based information technology becomes increasingly throttled by heating and energy consumption, nonlinear optics is under intense investigation as a potential ...