Volume 13, Issue 1 (International Journal of Optics and Photonics (IJOP) Vol 13, No 1, Winter-Spring 2019)                   IJOP 2019, 13(1): 35-42 | Back to browse issues page

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Ghayoor R, Keshavarz A. Transmission Properties of the Periodic Structures Based on Graphene Nonlinear Optical Conductivity in a Terahertz Field. IJOP. 2019; 13 (1) :35-42
URL: http://ijop.ir/article-1-319-en.html
Department of Physics, Shiraz University of Technology, Shiraz, Iran
Abstract:   (51 Views)
By developing the terahertz (THz) technology, in addition to generators and detectors of THz waves, the existence of some tools such as modulators and filters are needed. THz filters are important tools for various applications in the field of chemical and biological sensors. Linear and nonlinear optical properties of the graphene have attracted lots of attention. In fact graphene exhibits various nonlinear phenomena. Hence in this paper, by entering the graphene to the field of THz and using the graphene nonlinear properties with utilizing the transfer matrix method and transmission properties of a periodic structure containing graphene are investigated. A fairly straightforward computational method allows us to examine the effect of different structural parameters on the transmittance spectrum. Simulation results show that if the graphene nonlinear response in a periodic structure in the presence of a high-intensity THz field is considered, the proposed structure displays two bands of passes and stopping which can improve the design of the filters and controllers of THz waves.
Full-Text [PDF 613 kb]   (18 Downloads)    
Type of Study: Research | Subject: Special
Received: 2017/08/23 | Revised: 2017/12/24 | Accepted: 2018/01/25

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