microscopes for nanofiber measurements beyond the diffraction limit. It can be readily
implemented on any microscope. We demonstrated it by measuring tapered fibers radii from
0.4 to 4 µm with a resolution below the diffraction limit, from a few nanometers up to 50 nm in
the worst case, depending on the radii. This technique is a non-contact measurement with
the microscope objective placed a few centimeters from the nanofiber. We acquire the …