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Reciprocity condition in synchronously time-periodic bianisotropic materials
Boshgazi, S ; Sharif University of Technology | 2022
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- Type of Document: Article
- DOI: 10.1103/PhysRevB.106.214301
- Publisher: American Physical Society , 2022
- Abstract:
- In this paper, a sufficient reciprocity condition for general time-periodic modulated bianisotropic media is extracted from first principles. Reciprocity of various cases of significant importance, including stationary bianisotropic media, time-varying (TV) isotropic media, TV anisotropic media, and TV bianisotropic media, are investigated using this condition. We prove that synchronous time modulation of stationary bianisotropic yet reciprocal media (chiral, pseudochiral, and achiral) does not lead to nonreciprocity, unless the modulation function breaks time reversal symmetry. This is in contrast to recently published research. The theoretical results are validated using in-house finite difference time domain simulations. © 2022 American Physical Society
- Keywords:
- Anisotropic media ; Anisotropic medium ; Bianisotropic ; Bianisotropic material ; Bianisotropic media ; Condition ; First principles ; Isotropic media ; Nonreciprocity ; Time varying ; Time-modulation ; Finite difference time domain method
- Source: Physical Review B ; Volume 106, Issue 21 , 2022 ; 24699950 (ISSN)
- URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.106.214301