Roadmap on superoscillations

Michael Berry, Nikolay Zheludev*, Yakir Aharonov, Fabrizio Colombo, Irene Sabadini, Daniele C. Struppa, Jeff Tollaksen, Edward T.F. Rogers, Fei Qin, Minghui Hong, Xiangang Luo, Roei Remez, Ady Arie, Jörg B. Götte, Mark R. Dennis, Alex M.H. Wong, George V. Eleftheriades, Yaniv Eliezer, Alon Bahabad, Gang ChenZhongquan Wen, Gaofeng Liang, Chenglong Hao, C. W. Qiu, Achim Kempf, Eytan Katzav, Moshe Schwartz

*Corresponding author for this work

Research output: Contribution to journalReview article (Academic Journal)peer-review

39 Citations (Scopus)
278 Downloads (Pure)

Abstract

Superoscillations are band-limited functions with the counterintuitive property that they can vary arbitrarily faster than their fastest Fourier component, over arbitrarily long intervals. Modern studies originated in quantum theory, but there were anticipations in radar and optics. The mathematical understanding - still being explored - recognises that functions are extremely small where they superoscillate; this has implications for information theory. Applications to optical vortices, sub-wavelength microscopy and related areas of nanoscience are now moving from the theoretical and the demonstrative to the practical. This Roadmap surveys all these areas, providing background, current research, and anticipating future developments.

Original languageEnglish
Article number053002
Number of pages36
JournalJournal of Optics (United Kingdom)
Volume21
Issue number5
DOIs
Publication statusPublished - 18 Apr 2019

Keywords

  • imaging
  • information theory
  • optical beams

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