کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7932830 1512821 2017 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
All-optical photonic crystal logic gates using nonlinear directional coupler
ترجمه فارسی عنوان
دروازه های منطق کریستال فتونی تمام اپتیکی با استفاده از کوپلرهای غیر خطی جهت
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
In this paper, a nonlinear photonic crystal structure consisting of a nonlinear directional coupler and junctions for the design of all-optical logic gates is proposed. A bi-functional photonic crystal structure is initially designed which provides different two XOR or OR logic operations. Thereafter, by applying some modifications in the basic structure, new topologies for all-optical XNOR, NOR and AND logic gates are proposed. Nonlinear rods of the proposed structure are made of silicon nanocrystal to create required phase shift. The finite difference time domain and plane wave expansion methods are used to evaluate the proposed structures. Our simulation results show that the proposed gates can operate with a bit rate of more than 1 Tbits/s and also, inputs and output of the proposed logic gates are homogeneous with the required power of 3W for switching operation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Photonics and Nanostructures - Fundamentals and Applications - Volume 27, November 2017, Pages 55-63
نویسندگان
, , ,