Today, scientists have made a major breakthrough in the field of optics. Researchers from the University of Cambridge have developed a new “leaky mode” microtaper, which is capable of measuring distances down to the picometer level. This is the smallest unit of distance ever measured, and is equivalent to a millionth of a millionth of a metre. This breakthrough has the potential to revolutionize the field of optics and open up new possibilities for applications such as microscopy and precise positioning of objects.

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source: Phys.org