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Engineers and scientists at The University of Texas at Austin and the AMOLF institute in the Netherlands have invented the first mechanical metamaterials that easily transfer motion effortlessly in one direction while blocking it in the other, as described in a paper published on Feb. 13 in Nature. The material can be thought of as a mechanical one-way shield that blocks energy from coming in but easily transmits it going out the other side.

WNCG Alumni Ahmed Alkhateeb and Omar El-Ayach recently received the IEEE Signal Processing Society Young Author Best Paper Award for 2016. Their paper, “Channel Estimation and Hybrid Precoding for Millimeter Wave Cellular Systems,” originally appeared in the IEEE Journal of Selected Topics in Signal Processing in October 2014. Their co-authors on the project include their former advisor, Prof. Robert Heath, and Professor Geert Leus of Delft University of Technology. Dr. Alkhateeb is now a Wireless Communications Researcher at Facebook and Dr.

Join Prof. Andrea Alù as he shares insight into his work with metamaterials, light and an "invisibility cloak." 

Image: Erik Zumalt, The University of Texas at Austin Profs. Andrea Alù and Mikhail Belkin in the Department of Electrical and Computer Engineering at the Cockrell School of Engineering at The University of Texas at Austin have created a new nonlinear metasurface, or meta mirror, that could one day enable the miniaturization of laser systems.