کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7926692 1512517 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Plasmon resonance enhanced mid-infrared generation by graphene on gold gratings through difference frequency mixing
ترجمه فارسی عنوان
رزونانس پلاسما باعث افزایش تولید میانی مادون قرمز توسط گرافن در شبکه های طلا از طریق اختلاط فرکانس اختلاف می شود
کلمات کلیدی
نسل مادون قرمز، تولید فرکانس تفاوت، پلاسمون سطحی، گرافن،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
Graphene has been demonstrated to have extraordinary large second order nonlinear susceptibility that can be applied in generating mid-infrared (MIR) and terahertz waves through the difference frequency process. In this study, we exploit the highly localized electric fields caused by plasmon resonances to increase the nonlinear response from graphene. The proposed structure contains a graphene sheet on a gold grating substrate that sustains both surface plasmons at the near-infrared on the gold surface and plasmons at the MIR on the graphene surface. Based on finite difference time domain (FDTD) numerical simulations, more than 3 orders of magnitude improvement of the MIR generation efficiency is obtained by placing graphene sheets on a gold grating substrate under resonance conditions instead of placing them on a flat substrate. With the same gold grating substrate, MIR waves tunable from 30 to 55  THz are generated by tuning the gate voltage of the graphene sheet.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 406, 1 January 2018, Pages 183-187
نویسندگان
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