Journal Article Published Erratum Review SNOM X-ray diffraction imaging artificial intelligence bio-nanostructures biomaterials hexagonal boron nitride infrared insulator–metal transitions machine learning metamaterials multimodal imaging nanophotonics near-field imaging near-field microscope near-field optics optical anisotropy phase retardation phase-change materials phonon polaritons planar waveguides polaritons polarization management protein Bricks s-SNOM samarium sulfide scanning near-field microscopy scanning near-field optical microscopy