@article{discovery1416553,
           month = {November},
            year = {2013},
           title = {Terahertz imaging of sub-wavelength particles with Zenneck surface waves},
          volume = {103},
            note = {{\copyright} 2013 Author(s).. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.},
          number = {22},
         journal = {APPLIED PHYSICS LETTERS},
            issn = {0003-6951},
          author = {Navarro-Cia, M and Natrella, M and Dominec, F and Delagnes, JC and Kuzel, P and Mounaix, P and Graham, C and Renaud, CC and Seeds, AJ and Mitrofanov, O},
             url = {http://dx.doi.org/10.1063/1.4836195},
        abstract = {Impact of sub-wavelength-size dielectric particles on Zenneck surface waves on planar metallic antennas is investigated at terahertz (THz) frequencies with THz near-field probe microscopy. Perturbations of the surface waves show the particle presence, despite its sub-wavelength size. The experimental configuration, which utilizes excitation of surface waves at metallic edges, is suitable for THz imaging of dielectric sub-wavelength size objects. As a proof of concept, the effects of a small strontium titanate rectangular particle and a titanium dioxide sphere on the surface field of a bow-tie antenna are experimentally detected and verified using full-wave simulations.}
}