Integrating 2D quantum material into optical metasurface coating enables red light manipulation as easy as electrical control in circuits

https://www.eurekalert.org/news-releases/1111980

"nanoscale mirror electronically switched on/ off at room temperature functions as optical modulator... metasurface traps light within single tungsten disulfide atomic layer, creating exciton, causing material to act like mirror... applying voltage suppresses excitons, causing light absorption instead of reflection turning off mirror... makes metasurfaces tunable (optics previously were permanent once manufactured)... optical computing, wireless communication, nano-optics (lenses/ mirrors) that are not bulky"