Surface-Enhanced Infrared Spectroscopy Using Resonant Nanoantennas

Infrared spectroscopy is a powerful tool widely used in research and industry for a label-free and unambiguous identification of molecular species. Inconveniently, its application to spectroscopic analysis of minute amounts of materials, for example, in sensing applications, is hampered by the low infrared absorption cross-sections. Surface-enhanced infrared spectroscopy using resonant metal nanoantennas, or short "resonant SEIRA", overcomes this limitation. Resonantly excited, such metal nanostructures feature collective oscillations of electrons (plasmons), providing huge electromagnetic fields on the nanometer scale. Infrared vibrations of molecules located in these fields are enhanced by orders of…

• AV
  Alexander von Humboldt-Stiftung
• C
  Carl-Zeiss-Stiftung
• BS
  Baden-Württemberg Stiftung
• DF
  Deutsche Forschungsgemeinschaft

  Award: Pu 193/9
• GF
  German-Israeli Foundation for Scientific Research and Development
• BF
  Bundesministerium für Bildung und Forschung
• ER
  European Research Council