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Analysis of electromagnetic scattering from array of time-modulated graphene ribbons

Rahmanzadeh, M ; Sharif University of Technology | 2023

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  1. Type of Document: Article
  2. DOI: 10.1364/OE.489842
  3. Publisher: Optica Publishing Group (formerly OSA) , 2023
  4. Abstract:
  5. An accurate and fast method is presented for the analysis of scattering of electromagnetic waves from an array of time-modulated graphene ribbons. We derive a time-domain integral equation for induced surface currents under subwavelength approximation. Using the method of harmonic balance, this equation is solved for a sinusoidal modulation. The solution of the integral equation is then used to obtain the transmission and reflection coefficients of time-modulated graphene ribbon array. The accuracy of the method was verified through comparison with results of full-wave simulations. In contrast with previously reported analysis techniques, our method is extremely fast and can analyze structures with a much higher modulation frequency. The proposed method also provides interesting physical insights useful for designing novel applications and opens up new vistas in the fast design of time-modulated graphene-based devices. © 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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  8. Source: Optics Express ; Volume 31, Issue 13 , 2023 , Pages 21739-21752 ; 10944087 (ISSN)
  9. URL: https://opg.optica.org/oe/fulltext.cfm?uri=oe-31-13-21739&id=531680