Active control of propagating waves on plasmonic surfaces

T. Ribaudo, E. A. Shaner, S. S. Howardc, Claire F. Gmachl, X. J. Wang, F. S. Choa, D. Wasserman

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We demonstrate active control of propagating surface waves on a mid-infrared extraordinary optical transmission grating. The surface waves are excited at the interface between a GaAs substrate and a periodically patterned metal film using a dual wavelength quantum cascade laser. The spectral properties of the laser and the transmission grating are characterized by Fourier Transform Infrared spectroscopy. In addition, the far-field emission from excited surface waves at the metal/GaAs interface is studied using a novel spatial and spectral imaging technique. By actively controlling the optical properties of the grating, we demonstrate the ability to control the coupling of incident coherent radiation to surface waves on the grating. With increased tunability of the grating, directional control of excited surface waves should be achievable. These results suggest that the development of actively tunable plasmonic structures could result in plasmonic routers and switches for interconnect or sensing applications.

Original languageEnglish (US)
Title of host publicationPhotonics Packaging, Integration, and Interconnects IX
StatePublished - 2009
EventPhotonics Packaging, Integration, and Interconnects IX - San Jose, CA, United States
Duration: Jan 26 2009Jan 28 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherPhotonics Packaging, Integration, and Interconnects IX
Country/TerritoryUnited States
CitySan Jose, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


  • Extraordinary optical transmission
  • Mid-infrared
  • Quantum cascade laser
  • Surface plasmons


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