A scanning electron microscope image of the fabricated structure, developed by UC Berkeley researchers. Image: Jason Valentine/UC Berkeley
The second metamaterial is composed of silver nanowires grown inside porous aluminium oxide. Image: Jie Yao/UC Berkeley
Development in metamaterials - the so called “left handed” composite materials that negatively refract light waves and promise the sci-fi scenario of rendering objects invisible - is accelerating with news this week of two breakthroughs from scientists at the University of California, Berkeley.
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