Surface plasmon-enhanced terahertz emission from a hemicyanine self-assembled monolayer.

نویسندگان

  • Gopakumar Ramakrishnan
  • Nishant Kumar
  • Paul C M Planken
  • Daisuke Tanaka
  • Kotaro Kajikawa
چکیده

Emission of terahertz radiation is observed when surface plasmons are excited on a thin film of gold, in the Kretschmann geometry. When a hemicyanine-terminated alkanethiol self-assembled monolayer of thickness 1.2 nm is deposited on the gold film, stronger terahertz emission is observed. Our experimental results confirm that enhanced terahertz emission is possible from planar gold surfaces when surface plasmons are excited.

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عنوان ژورنال:
  • Optics express

دوره 20 4  شماره 

صفحات  -

تاریخ انتشار 2012