کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5449761 1512539 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Infiltrated photonic crystal cavity as a highly sensitive platform for glucose concentration detection
ترجمه فارسی عنوان
حفره کریستال فوتونی به عنوان یک پلت فرم بسیار حساس برای تشخیص غلظت گلوکز نفوذ کرده است
کلمات کلیدی
بیوسنسور نوری، کریستال فوتونی، موجبندی حفره حفره، حساسیت بالا، غلظت گلوکز،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
A Bio-sensing platform based on an infiltrated photonic crystal ring shaped holes cavity-coupled waveguide system is proposed for glucose concentration detection. Considering silicon-on-insulator (SOI) technology, it has been demonstrated that the ring shaped holes configuration provides an excellent optical confinement within the cavity region, which further enhances the light-matter interactions at the precise location of the analyte medium. Thus, the sensitivity and the quality factor (Q) can be significantly improved. The transmission characteristics of light in the biosensor under different refractive indices that correspond to the change in the analyte glucose concentration are analyzed by performing finite-difference time-domain (FDTD) simulations. Accordingly, an improved sensitivity of 462 nm/RIU and a Q factor as high as 1.11х105 have been achieved, resulting in a detection limit of 3.03х10−6 RIU. Such combination of attributes makes the designed structure a promising element for performing label-free biosensing in medical diagnosis and environmental monitoring.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 384, 1 February 2017, Pages 93-100
نویسندگان
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