COMPUTATIONAL RESEARCH ON SENSING MECHANISM OF NANOMETALDOTS BASED LIQUID FILLED FIBER

[摘要] A temperature sensor of liquid (Chloroform) filled fiber based on monometallic gold nanodotsis investigated and its numerical study is analyzed using Finite Element Method(FEM). The sensitivity is obtained by coupling mechanism between the liquid-filledmodes and the Plasmon modes. The interaction place of two different modes gives themaximum resonance of loss spectra over the wavelength range from 900nm to 1150nmkeeping the range of temperature from 20ºC to 60ºC with steps of 20ºC. The loss spectraof the proposed asymmetric structure at different temperatures exploited its sensitivitywhich is about 2.03 nm/ºC and 1.8703 nm/ºC for x - & y – polarization. Hence it showsthat the resonance peak of x polarization provides much better wavelength shift than ypolarization which makes it suitable for detecting the temperature over the wavelengthrange of 900 nm to 1150 nm.

[学科分类] 生物技术

[关键词] Nanodots;Finite Element Method;Resonance;Sensitivity