New metamaterial first to bend light in the visible spectrum

from PopSci:

Researchers at the California Institute of Technology have engineered a metamaterial with a refined 3-D structure that gives light a negative refraction index upon entering the material.

Put another way, it bends light the opposite way one might expect, irrespective of the angle or polarization of incoming light waves. Put yet another way: We’re getting closer to that invisibility cloak we’ve been looking for.

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