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Polarization dependant scattering as a tool to retrieve the buried phase information of surface plasmon polaritons

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3 Author(s)
Crosbie, S. ; Science Centre North, University College Dublin, Belfield, Dublin 4, Ireland ; McClean, E. ; Zerulla, D.

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We report on an experimental and theoretical study demonstrating that the phase information of a surface plasmon polariton (SPP) can be retrieved by investigating the cross polarized scattered components in the SPP reflection channel. The method does not require traditional interferometric techniques, optical heterodyning, or polarimetry, instead the method is self referencing. Studies are performed for different excitation wavelengths (561 nm and 795 nm), providing an alternative access route to phase information for sensing applications while also offering a deeper understanding of the scattering behavior of SPPs.

Published in:

Applied Physics Letters  (Volume:101 ,  Issue: 16 )