2012/02/02 by Gopakumar Ramakrishnan, Nishant Kumar, P. C. M. Planken +2 · 1 citation
Engineering · #Photonic and Optical Devices #Plasmonic and Surface Plasmon Research #Terahertz technology and applications
paper · doi:10.1364/oe.20.004067
openalex publication_date 2012/02/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
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.