Abstract

Near-field distribution produced by plasmonic nanopost arrays was measured under total internal reflection. Measured result was compared with finite difference time domain simulations. The size of localized field on nanopost arrays was measured to be 180 nm, 0.57-times smaller than diffraction-limited Gaussian spot size. The possibility of plasmonic nanopost arrays for applications in super-localization microscopy was explored.

© 2017 Optical Society of America

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