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(a) Panchromatic photon map of a rectangular shaped terrace. Spectrum images taken by scanning the incident electron beam along the line with (b) -polarized and (c) -polarized light emitted in the direction depicted by the arrow in (a). Spectrum images taken along the line with (d) - and (e) -polarized light.
Interference between transition radiation and SPP induced radiation at a surface step. (a) Electron beam is incident on the left side of the step and (b) on the right side of the step.
Intensity profile along the section of the spectrum image in Fig. 1(b) at an energy of 2.26 eV (550 nm in wavelength). Bold solid lines are fitting curves for the data on both sides of the step.
Dispersion relation of SPP on a silver surface. The solid line is a dispersion curve calculated from the optical data.
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