Topological Photonic Systems

Sunil Mittal, Wade DeGottardi and Mohammad Hafezi

Opportunities are growing for the design of photonic systems that are “topologically protected” from defects and disorders—and in which light can be made to propagate in a single preferred direction.

figureAn “optical Möbius strip.” [Image: Dan Curticapean, University of Applied Sciences Offenburg, Germany; 1st Place, OPN 2011 Photo Contest]

Opportunities are growing for the design of photonic systems that are “topologically protected” from defects and disorders—and in which light can be made to propagate in a single preferred direction.

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