New technique ensures electron microscopes identify colors

Although technology has advanced greatly in recent decades, the use of electron microscopes is still subject to color limitation in the demonstration of the analyzed objects - only black, white and grayscale are displayed. But that may change soon, as scientists at the University of Berkeley (USA) are presenting a very innovative project.

The great asset of the new system is not in the use of more powerful optical sensors, but in the more complete chemical evaluation of the items analyzed at nanoscopic scale. With this, it is possible to understand what each element is made of and also to understand their interaction with light. Depending on how they reflect it, microscopes can understand the color of each one.

And to arrive at this analysis of reflections, scientists cannot use their own elements, but must use the "near field light, " which is based on the joint oscillations of the electrons involved in the process. According to Technological Innovation, this makes detection very difficult, but guarantees better results in the resolutions of the analyzed images.