Exciting space-time surface plasmon polaritons by irradiating a nanoslit structure
Naoki Ichiji,
Murat Yessenov,
Kenneth L. Schepler
et al.
Abstract:Space-time (ST) wave packets are propagation-invariant pulsed optical beams that travel freely in dielectrics at a tunable group velocity without diffraction or dispersion. Because ST wave packets maintain these characteristics even when only one transverse dimension is considered, they can realize surface-bound waves (e.g., surface plasmon polaritons at a metal-dielectric interface, which we call ST-SPPs) that have the same unique characteristics as their freely propagating counterparts. However, because the … Show more
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