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Khodabakhsh A, Moravvej-Farshi M K, Ebnali-Heidari M. Band Structures for 2D Photonic Crystals in Presence of Nonlinear Kerr Effect ‎Calculated by Use of Nonlinear Finite Difference Time Domain (NFDTD) Method‎. IJEEE. 2011; 7 (2) :122-130
URL: http://ijeee.iust.ac.ir/article-1-350-fa.html
Band Structures for 2D Photonic Crystals in Presence of Nonlinear Kerr Effect ‎Calculated by Use of Nonlinear Finite Difference Time Domain (NFDTD) Method‎. . 1390; 7 (2) :122-130

URL: http://ijeee.iust.ac.ir/article-1-350-fa.html


چکیده:   (4183 مشاهده)
We report the simulation results for impact of nonlinear Kerr effect on band structures of a ‎two dimensional photonic crystal (2D-PhC) with no defect, a PhC based W1-waveguide ‎‎(W1W), and also Coupled-Cavity Waveguides (CCWs). All PhC structres are assumed to a ‎square lattice of constant a made of GaAs rods of radius r=0.2a, in an air background. The ‎numerical simulation was performed using the nonlinear finite difference time domain ‎‎(NFDTD) technique. To study the impact of Kerr effect on the photonic band structures, E-‎polarized lights of peak input intensities 0.5 GW-cm−2≤I≤25 GW-cm−2 have been used. The ‎numerical results have shown that as the input light intensity increases, the band edges for all ‎PhC waveguide structures considered experience red shifts. These numerical results for CCWs ‎also show that the larger the light input intensity, the smaller is the corresponding maximum ‎light group velocity.‎
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نوع مطالعه: Research Paper | موضوع مقاله: 2-Optoelectronics and Photonics
دریافت: ۱۳۸۹/۹/۱۳ | پذیرش: ۱۳۹۲/۶/۲۳ | انتشار: ۱۳۹۲/۶/۲۳

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