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Broad-angle polarization-independent transparency in PT-symmetric optical multilayers.

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Title: Broad-angle polarization-independent transparency in PT-symmetric optical multilayers.
Authors: Varvari, Anna A1 (AUTHOR) avarvari@ece.auth.gr, Nye, Nicholas S1 (AUTHOR), Karatzidis, Dimitrios I1 (AUTHOR), Kantartzis, Nikolaos V1 (AUTHOR)
Source: Journal of Physics D: Applied Physics. 2026, Vol. 59 Issue 2, p1-10. 10p.
Subjects: Optical multilayers, Refractive index, Feasibility studies, Translucency (Optics)
Abstract: A parity-time (PT)-symmetric multilayered structure is shown to exhibit near-perfect transparency across a broad angular spectrum for both TE and TM polarizations. With a carefully engineered complex refractive index featuring a small imaginary component ( n I = 0.001 ), the system achieves unity transmission and vanishing reflection over all incidence angles within [ − 40 ∘ , 40 ∘ ] . Importantly, in the TM case, this range extends even further to ± 60 ∘ . This performance is realized entirely within the broken PT-symmetric phase and remains robust under significant parameter deviations. Essentially, the required levels of optical gain and loss fall well within the capabilities of existing materials in the optical regime, rendering the structure experimentally feasible with current fabrication technologies. These findings establish a practical and physically accessible strategy for designing broadband, angle-tolerant, and polarization-independent photonic systems based on non-Hermitian principles. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Physics D: Applied Physics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 190589831
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PubTypeId: academicJournal
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  Data: Broad-angle polarization-independent transparency in PT-symmetric optical multilayers.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Physics+D%3A+Applied+Physics%22">Journal of Physics D: Applied Physics</searchLink>. 2026, Vol. 59 Issue 2, p1-10. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Optical+multilayers%22">Optical multilayers</searchLink><br /><searchLink fieldCode="DE" term="%22Refractive+index%22">Refractive index</searchLink><br /><searchLink fieldCode="DE" term="%22Feasibility+studies%22">Feasibility studies</searchLink><br /><searchLink fieldCode="DE" term="%22Translucency+%28Optics%29%22">Translucency (Optics)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A parity-time (PT)-symmetric multilayered structure is shown to exhibit near-perfect transparency across a broad angular spectrum for both TE and TM polarizations. With a carefully engineered complex refractive index featuring a small imaginary component ( n I = 0.001 ), the system achieves unity transmission and vanishing reflection over all incidence angles within [ − 40 ∘ , 40 ∘ ] . Importantly, in the TM case, this range extends even further to ± 60 ∘ . This performance is realized entirely within the broken PT-symmetric phase and remains robust under significant parameter deviations. Essentially, the required levels of optical gain and loss fall well within the capabilities of existing materials in the optical regime, rendering the structure experimentally feasible with current fabrication technologies. These findings establish a practical and physically accessible strategy for designing broadband, angle-tolerant, and polarization-independent photonic systems based on non-Hermitian principles. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Physics D: Applied Physics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1088/1361-6463/ae2ee0
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Refractive index
        Type: general
      – SubjectFull: Feasibility studies
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      – TitleFull: Broad-angle polarization-independent transparency in PT-symmetric optical multilayers.
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            NameFull: Karatzidis, Dimitrios I
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              M: 01
              Text: 2026
              Type: published
              Y: 2026
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