Design and Analysis of Waveguide Structure Sensor Based on Nanoparticles and Left-handed Material

Автор(ы) M.S. Hamada1, M.M. Shabat2

1Al-Aqsa University, Gaza, Gaza Strip P. O. Box 4051, Palestinian Authority

2Islamic University, Gaza, Gaza Strip P. O. Box 10, Palestinian Authority

Выпуск Том 11, Год 2019, Номер 6
Даты Получено 11 июля 2019; в отредактированной форме 06 декабря 2019; опубликовано online 13 декабря 2019
Ссылка M.S. Hamada, M.M. Shabat, J. Nano- Electron. Phys. 11 No 6, 06004 (2019)
PACS Number(s) 07.07.Df, 41.20.Jb, 42.25.Bs, 42.15.Eq
Ключевые слова Nanoparticles (68) , Dispersion relation, Sensitivity (11) , Left-handed materials (2) .

The use of left-handed materials in scientific applications has attracted attention of many researchers in the last few years. Nanoparticles are also new materials with small size in scale of nanometer which are rapidly attracting more interest and consideration especially in nanotechnology application. The main advantages of using both left-handed materials and nanoparticles in the proposed sensors are the possibility of a significant reduction in the structure size and the enhancement of the sensitivity sensor.In this paper, we have investigated a three-layer planar waveguide sensor consisting of thin nanoparticles core based on left-handed material substrate and water cover which are employed for sensing applications. The interaction of TM and TE surface waves with the proposed planar waveguide structure will be studied for detection of the penetration depth, any changes in the refractive index of the analyte and the related sensitivity enhancement effect are analyzed. It is observed that the sensitivity of the proposed sensors is improved compared to that of the conventional three-layer waveguide sensors. High sensitivity has been observed which could be utilized for future sensor applications.

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