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Contact: Mark Esser
National Institute of Standards and Technology (NIST)

New NIST Metamaterial Gives Light a One-Way Ticket

Caption: This is a schematic of NIST's one-way metamaterial. Forward traveling green light (left) or red light passes through the multilayered block and comes out at an angle due to diffraction off of grates on the surface of the material. Light traveling in the opposite direction (right) is almost completely filtered by the metamaterial and can't pass through.

Credit: Xu/NIST

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Related news release: New NIST metamaterial gives light a one-way ticket

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