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physics.optics2026
Angular-Channel Capacity and Nonlocal Wavefront Engineering for Phased-Array--Lens Systems
Mohammad Soltani, George V. Eleftheriades
Wide-angle beam steering with high directivity is fundamentally limited by diffraction, restricting the scan performance of phased-array systems. Here, we establish the bounds gove…
physics.optics2008★ 87 cited
Free-Space Imaging Beyond the Diffraction Limit Using a Veselago-Pendry Transmission-Line Superlens
Ashwin K. Iyer, G. V. Eleftheriades
Focusing using conventional lenses relies on the collection and interference of propagating waves, but discounts the evanescent waves that decay rapidly from the source. Since thes…