کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7932815 1512820 2018 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simulation and analysis of plasmonic sensor in NIR with fluoride glass and graphene layer
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Simulation and analysis of plasmonic sensor in NIR with fluoride glass and graphene layer
چکیده انگلیسی
A calcium fluoride (CaF2) prism based plasmonic biosensor with graphene layer is proposed in near infrared region (NIR) of operation. The stacking of multilayer graphene is considered with dielectric interlayer sandwiched between two graphene layers. Excellent optical properties of CaF2 glass and enhanced field at the graphene-analyte interface are intended to be exploited for proposed sensor structure in NIR spectral region. Performance parameters in terms of field enhancement at interface and figure of merit (FOM) are analyzed and compared with those of conventional SPR based sensor. It is demonstrated that the same sensor probe can also be used for gas sensing with nearly 3.5-4 times enhancement in FOM, compared with conventional sensor. The results show that CaF2 based SPR sensor provides much better sensitivity than that based on other glasses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Photonics and Nanostructures - Fundamentals and Applications - Volume 28, February 2018, Pages 94-99
نویسندگان
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