کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7927063 1512540 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
All-optical high performance graphene-photonic crystal switch
ترجمه فارسی عنوان
سوئیچ کریستال گرافن فوتونیک با عملکرد بالا تمام اپتیک
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
The all-optical switch is realized based on nonlinear transmission changes in Fano resonance of 2D photonic crystals (PhC) which enhances the light intensity on the graphene in PhC; and in this study, the graphene layer is used as the nonlinear material. The refractive index change of graphene layer leads to a shift in the Fano resonance frequency due to the input light intensity through the Kerr nonlinear effect. Through finite-difference time-domain simulation, it is found that the high performance of all-optical switching can be achieved by the designed structure with a threshold pump intensity as low as MW/cm2. This structure is featured by optical bistability. The obtained results are applicable in micro optical integrated circuits for modulators, switches and logic elements for optical computation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 383, 15 January 2017, Pages 159-164
نویسندگان
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