Manipulating nanoscale light in scanning tunneling microscope junctions is attained by nanofabrication of gold tips using a focused ion beam technique. Researchers at Fritz-Haber Institute, Berlin, Germany, demonstrated that a spectrum of nanolight in a nanoscale plasmonic junction can be modulated with plasmonic Fabry–Pérot tips. Precise control of nanolight is of key relevance to nanoscale imaging and spectroscopy to investigate structure, dynamics, and the optoelectronic properties of nanomaterials and single molecules.
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Source: Phys.org