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arXiv · 2412.20686

Surface Plasmon Polaritons: Creation Dynamics and Interference of Slow and Fast Propagating SPPs at a Temporal Boundary

Jay A. Berres·S. Ali Hassani Gangaraj·George W. Hanson
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Abstract

We establish the theoretical framework for a material system that supports surface plasmon polaritions (SPPs) excited by a dipole excitation, where the media configuration suddenly changes at a temporal boundary. We employ three-dimensional Green's function analysis in the Laplace transform domain. We use this framework to demonstrate dynamic SPP formation and time-boundary-induced interference of slow and fast propagating SPPs. This analysis provides insight into how SPPs are formed in time and how they interfere at a temporal boundary.

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Jay A. Berres, S. Ali Hassani Gangaraj, George W. Hanson. 2024-12-30. Surface Plasmon Polaritons: Creation Dynamics and Interference of Slow and Fast Propagating SPPs at a Temporal Boundary. https://doi.org/10.1109/tap.2026.3678081

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