کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5448981 | 1512516 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Theoretical analysis of optical properties and sensing in a dual-layer asymmetric metamaterial
ترجمه فارسی عنوان
تجزیه و تحلیل نظری خواص اپتیک و حساسیت در یک ماده متقارن نامتقارن دو لایه
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کلمات کلیدی
پلاسمون سطحی، متام مواد، تئوری حالت همبسته، حسگر نوری و سنسورها،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
Surface plasmon polaritons (SPPs) have undisputed advantages like strong enhancement of the local electric field and much better adaptability to nano architectures. Here, we propose a three-dimensional plasmonic metamaterial consist of two nanorod layers, where this system comprises two silver bars stacked above another two symmetric silver bars. We use a theoretical model, which well explains the generation of plasmon induced transparency (PIT) phenomena. The highest reflection and absorption can reach about ninety percent and forty percent by tuning the asymmetry, respectively. As one of the applications, plasmonic sensors rely either on surface plasmon polaritons or on localized surface plasmons on continuous or nanostructured noble-metal surfaces to detect many events. In the sensing devices, an important comparative parameter of sensing devices is the figure of merit (FOM), and we also demonstrate the FOM via changing the refractive index of environmental dielectric. By adjusting the parameters, we can realize a high FOM, and an interesting double-peak sensing is also obtained in this plasmonic metamaterial sensor. The proposed model and findings may provide guidance for fundamental research of the integrated plasmonic nanosensor applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 407, 15 January 2018, Pages 250-254
Journal: Optics Communications - Volume 407, 15 January 2018, Pages 250-254
نویسندگان
Hui Xu, Hongjian Li, Zhihui He, Zhiquan Chen, Mingfei Zheng, Mingzhuo Zhao,