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Featured Article
Visible-to-THz near-field nanoscopy
Hillenbrand1,2, Y. Abate3, M.K. Liu4,5, X. Chen4,6, D.N. Basov6
1 CIC nanoGUNE BRTA and Dept. of Electricity and Electronics at UPV/EHU, 20018 Donostia-San Sebastián, Spain.
2 Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
3 Department of Physics and Astronomy, University of Georgia, Athens, GA 30602-2451, USA.
4 Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794, USA
5 National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, USA.
6 Department of Physics, Columbia University, New York NY 10027, USA.
(Nature Reviews Materials, 2025)
Abstract
Optical microscopy plays a significant role in research, development, and quality control across a wide range of scientific, technological, and medical fields. However, diffraction limits the spatial resolution of conventional optical instruments to about half the illumination wavelength. A technique that surpasses the diffraction limit in the wide spectral range between visible and terahertz frequencies is scattering-type scanning near-field optical microscopy (s-SNOM).
