Nonlocal flat optics

By K. Shastri, Francesco Monticone. Nature Photonics, 2022

177 citations recorded by the source corpus.

Nonlocal effects—in which the optical response of a system at a given spatial point depends on the field in the surrounding space—are reviewed in the context of metasurfaces and flat optics. Nonlocal flat optics may be useful for controlling light in ultra-thin platforms. In electromagnetics and photonics, ‘nonlocality’ refers to the phenomenon by which the response/output of a material or system at a certain point in space depends on the input field across an extended region of space. Although nonlocal effects and the associated wavevector/momentum dependence have often been neglected or seen as a nuisance in the context of metasurfaces, the emerging field of nonlocal flat optics seeks to exploit strong effective nonlocality to enrich and enhance their response. Here we summarize the latest advances in this field, focusing on its fundamental principles and various applications, from optical computing to space compression. The convergence of local and nonlocal flat optics may open exciting opportunities in the quest to control light, in real and momentum space, using ultra-thin platforms.

Subfields: Biomedical Engineering, Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films

View Paper: https://www.semanticscholar.org/paper/fb1d70ea4cc9e89261b08f9062142efe6199ce14

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In Biomedical Engineering

  1. C. T. Chan
  2. Meng Kang
  3. M. Xiao
  4. Tao Liu
  5. Chin-teh Sun
  6. H. H. Huang
  7. Ankit Srivastava

In Electronic, Optical and Magnetic Materials

  1. M. Xiao
  2. Meng Kang
  3. Tao Liu
  4. C. T. Chan
  5. Ankit Srivastava
  6. Douglas H. Werner
  7. Do-Hoon Kwon

In Surfaces, Coatings and Films

  1. C. T. Chan

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