Metal-free scanning optical microscopy with a fractal fiber probe
Scanning Near-field Optical Microscopy (SNOM) is the leading instrument used to image optical fields on the nanometer scale. A metalcoating is typically applied to SNOM probes to define a subwavelength aperture and minimize optical leakage, but the presence of such coatings in the near field of the sample can often cause a substantial change in the sample emission properties. For the first time, the authors demonstrate nearfield imaging on a metal substrate with a metal-free probe made...[Show more]
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