The picoscope

Cambridge University researchers and their colleagues elsewhere in Europe have created a pico-cavity device from gold atoms that can focus light to a resolution below its wavelength effectively creating a pico-scale version of the microscope that allows them to local at individual chemical bonds in a molecule. The "pico-cavity" has to be the smallest microscope slide holding a simple comprising a single molecule in bump in a gold nanostructure and confining light to less than a billionth of a meter.