We propose an optical probe configuration capable of 2D sub-diffraction imaging at a large working distance at visible frequencies. The structure consists of a planar antenna-array that facilitates super-focusing due to “radiationless interference”.
© 2012 OSA
Y. Wang, A. S. Helmy, and G. V. Eleftheriades, "Plasmonic Antenna-Array for 2D Sub-Diffraction Focusing Beyond the Optical Near-Field," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (Optical Society of America, 2012), paper QF1D.8.
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