Dispersing light with surface plasmon polaritonic crystals |
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Authors: | Mikhailov V Wurtz G A Elliott J Bayvel P Zayats A V |
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Institution: | Department of Electronic and Electrical Engineering, University College London, Torrington Place, London, UK. |
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Abstract: | 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. |
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