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. 2017 Jul 12;3(7):e1700721. doi: 10.1126/sciadv.1700721

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Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.

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Fig. 2 — (A) Long-range plasmon wave pattern, excited with zero time delay pulses on a 120-nm-thick hexagonal platelet. (B) The platelet is 37 nm high and permits long- and short-range surface plasmon excitation simultaneously. (B) Snapshot at t₀ + 4.52 fs time delay, taken from a time-dependent series. (C and D) The PEEM results are modeled, taking all specifications from images (A) and (B) into account. (E) Emission profiles from platelets (A) and (B). From profile (A), the LR-SPP wavelength is determined as λ_LR-SPP = 785 nm. Profile (B) illustrates the superposition of LR-SPPs and SR-SPPs, where the SR-SPP wavelength is determined as λ_SR-SPP = 185 nm. (F) The emission profiles derived from the theoretical PEEM images.