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Research into topological photonic metamaterials, led by City College of New York, shows that long-range interactions in metamaterials can change the behavior of lightwaves, forcing the waves to localize in space. The study further shows that by controlling the degree of these interactions, the character of the lightwaves can be switched from propagating to trapped. This discovery could lead to new ways to speed online data transfer, according to the researchers.
Photonic topological insulators enable topological boundary modes that are resilient to defects and disorder, irrespective of manufacturing precision. This property is known as topological protection. Higher-order topological insulators (HOTIs) offer topological protection…READ MORE