The Michigan Engineer News Center

New building design withstands earthquake simulation

CEE researchers simulated an off-the-charts earthquake in a laboratory to test their new technique for bracing high-rise concrete buildings.| Short Read

Their technique passed the test, withstanding more movement than an earthquake would typically demand. Professor James Wight, Associate Professor Gustavo Parra-Montesinos, and doctoral student Remy Lequesne, are featured in a video of the simulation.

The electrons absorb laser light and set up “momentum combs” (the hills) spanning the energy valleys within the material (the red line). When the electrons have an energy allowed by the quantum mechanical structure of the material—and also touch the edge of the valley—they emit light. This is why some teeth of the combs are bright and some are dark. By measuring the emitted light and precisely locating its source, the research mapped out the energy valleys in a 2D crystal of tungsten diselenide. Credit: Markus Borsch, Quantum Science Theory Lab, University of Michigan.

Mapping quantum structures with light to unlock their capabilities

Rather than installing new “2D” semiconductors in devices to see what they can do, this new method puts them through their paces with lasers and light detectors. | Medium Read