Raising Light Frequencies Makes Nanosize Objects Visible

Researchers at Australian National University (ANU) and the University of Adelaide are using nanotechnology to increase the frequency of the light that can be detected by cameras and other technologies by up to seven times. There is significant interest in achieving very high frequency detection of extreme-ultraviolet (EUV) light in order to observe objects at the nanoscale. “With violet light we can see much smaller things compared to using red light,” researcher Sergey Kruk of ANU said. “And with extreme-ultraviolet light sources, we can see things beyond what’s possible using conventional microscopes of today.” High-harmonic generation (HHG) is one of the pathways leading toward light sources in...