Scanning Near-Field Optical Microscopes For Accuracy

Scanning Near-field Optical Microscopes (SNOM/NSOM) are advanced imaging instruments that overcome the diffraction limit of light by using a sharp probe placed extremely close to a specimen’s surface to collect optical signals in the near-field region. This technique provides optical resolution beyond conventional light microscopes, often down to tens of nanometers, while simultaneously offering topographical information. SNOM is widely used in nanophotonics, material science, and biological research for studying surface structures, optical properties, and molecular interactions at the nanoscale. Modern systems often integrate fluorescence, Raman, or polarization-sensitive modes for multifunctional analysis.