DOI

  • Vincent Ginis
  • Marco Piccardo
  • Michele Tamagnone
  • Jinsheng Lu
  • Min Qiu
  • Simon Kheifets
  • Federico Capasso
The electromagnetic near field enables subwavelength applications such as near-field microscopy and nanoparticle manipulation. Present methods to structure the near field rely on optical antenna theory, involving nanostructures that locally convert propagating waves into confined near-field patterns. We developed a theory of remote rather than local near-field shaping, based on cascaded mode conversion and interference of counterpropagating guided waves with different propagation constants. We demonstrate how to structure at will the longitudinal and transverse variation of the near field, allowing for distributions beyond the conventional monotonic decay of the evanescent field. We provide an experimental realization that confirms our theory. Our method applies to fields with arbitrary polarization states and mode profiles, providing a path toward three-dimensional control of the near field.
Original languageEnglish
Article numberabb6406
Pages (from-to)436-440
Number of pages5
JournalScience
Volume369
Issue number6502
DOIs
Publication statusPublished - 24 Jul 2020

    Research areas

  • Near field, Cascaded mode conversion, Inverse design, Integrated optics

ID: 52935896