Surface Plasmon Polaritons Visualized with PiFM
Surface plasmon polaritons (SPP) at the gold-air surface imaged via PiFM. p-polarized 809 nm laser beam is focused via 1.49 NA objective lens with a varying incident angle (controlled via a linear translation stage). Top images show the CCD images of the illumination spot.
Image Courtesy: Junghoon Jahng, UC Irvine
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