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Updated: Jun 23, 2026

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces
Published on: July 26, 2016
Enhancement of evanescent spatial harmonics inside media with extreme optical anisotropy
Pavel A Belov1, Yan Zhao, Yang Hao
1School of Electronic Engineering and Computer Science, Queen Mary University of London, London, E1 4NS, UK. pavel.belov@elec.qmul.ac.uk
Abstract:
Significant enhancement of evanescent spatial harmonics inside the slabs of media with extreme optical anisotropy is revealed. This phenomenon results from the pumping of standing waves and has the feature of being weakly sensitive to the material losses. Such characteristics may enable subwavelength imaging at considerable distances away from the objects.
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