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Arka Majumdar, a UW assistant professor of physics and of electrical and computer engineering and faculty member in the Institute for Nano-Engineered Systems, published a new paper in the journal Nano Letters announcing that his group, in collaboration with researchers at National Tsing Hua University in Taiwan, has constructed functional metalenses that are one-tenth to one-half the thickness of the wavelengths of light that they focus. Their metalenses, which were constructed out of layered 2D materials, were as thin as 190 nanometers — less than 1/100,000ths of an inch thick. The team’s prototype metalenses were all built at WNF.