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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 11 — Jun. 3, 2013
  • pp: 13368–13379

Exceptional points in extraordinary optical transmission through dual subwavelength metallic gratings

Hai-Xu Cui, Xue-Wei Cao, Ming Kang, Teng-Fei Li, Mu Yang, Tian-Jing Guo, Qing-Hua Guo, and Jing Chen  »View Author Affiliations

Optics Express, Vol. 21, Issue 11, pp. 13368-13379 (2013)

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Complex metamaterials with multiple optical resonances in constituent elements possess many similarities with open quantum systems that can be described by non-Hermitian Hamiltonian. By analogy with a two-state open quantum system, we show that a classic analogue of exceptional points can be observed in the transmission spectra of dual subwavelength metallic gratings. Anti-crossing (crossing) between the two branches λR of extraordinary optical transmission, with crossing (anti-crossing) of the corresponding widths ΓR, is observed in the parameter space spanned by the lateral displacement L and the angle of incidence φ0. Exchanges of field patterns and phases, and the variation of field profile when circling the exceptional point are discussed. This work highlights the potential to transfer the concepts and applications from open quantum systems to optical metamaterials.

© 2013 OSA

OCIS Codes
(000.1600) General : Classical and quantum physics
(270.3100) Quantum optics : Instabilities and chaos
(160.3918) Materials : Metamaterials

ToC Category:

Original Manuscript: April 29, 2013
Revised Manuscript: May 12, 2013
Manuscript Accepted: May 15, 2013
Published: May 24, 2013

Hai-Xu Cui, Xue-Wei Cao, Ming Kang, Teng-Fei Li, Mu Yang, Tian-Jing Guo, Qing-Hua Guo, and Jing Chen, "Exceptional points in extraordinary optical transmission through dual subwavelength metallic gratings," Opt. Express 21, 13368-13379 (2013)

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