Dispersing light with surface plasmon polaritonic crystals.
Spectral dispersion of light on a finite-size surface plasmon polaritonic (SPP) crystal has been studied. The angular wavelength separation of one or more orders of magnitude higher than in other state-of-the-art wavelength-splitting devices available to date has been demonstrated. The two-stage process is responsible for the dispersion value, which involves conversion of the incident light into SPP Bloch modes of a nanostructure followed by the SPP Bloch waves refraction at the SPP crystal boundary. The high spectral dispersion achievable in plasmonic devices may be useful for integrated high-resolution spectroscopy in nanophotonic, optical communication and lab-on-a-chip applications.
Mikhailov
V
V
Department of Electronic and Electrical Engineering, University College London, Torrington Place, London, UK.
Wurtz
G A
GA
Elliott
J
J
Bayvel
P
P
Zayats
A V
AV
D008027:Light; D049329:Nanostructures / Q000737:chemistry; D013057:Spectrum Analysis; D020349:Surface Plasmon Resonance / Q000295:instrumentation