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Low-dimensional optical chirality in complex potentials

Cited 30 time in Web of Science Cited 36 time in Scopus
Authors

Yu, Sunkyu; Park, Hyun Sung; Piao, Xianji; Min, Bumki; Park, Namkyoo

Issue Date
2016-09
Publisher
OSA Publishing
Citation
Optica, Vol.3 No.9, pp.1025-1032
Abstract
Chirality is a universal feature in nature, as observed in fermion interactions and DNA helicity. Much attention has been given to chiral interactions of light, not only regarding its physical interpretation, but also focusing on intriguing phenomena in the excitation, absorption, refraction, and topological phases. Although recent progress in metamaterials has spurred artificial engineering of chirality, most approaches are founded on the same principle of the mixing of electric and magnetic responses. Here we propose non-magnetic chiral interactions of light based on low-dimensional eigensystems. Exploiting the mixing of amplifying and decaying electric modes in a complex material, the low dimensionality in polarization space having a chiral eigenstate is realized, in contrast to two-dimensional eigensystems in previous approaches. The existence of an optical-spin black hole from low-dimensional chirality is predicted, and singular interactions between chiral waves are confirmed experimentally in parity-time-symmetricmetamaterials.
ISSN
2334-2536
URI
https://hdl.handle.net/10371/202289
DOI
https://doi.org/10.1364/OPTICA.3.001025
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  • College of Engineering
  • Department of Electrical and Computer Engineering
Research Area Disordered, Open-System Wave Mechanics, Photonic AI Systems, Photonic Neuromorphic Devices, 광학 뉴로모픽 소자, 광학 인공지능 시스템, 무질서, 열린계 파동역학

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