本文選題：傳感器 + 光子晶體光纖　； 參考：《中國激光》2017年03期

【摘要】：設(shè)計(jì)了一種基于表面等離子體共振(SPR)效應(yīng)以及缺陷耦合機(jī)理的新型光子晶體光纖傳感器。該傳感器結(jié)構(gòu)中光子晶體光纖包層的一個特定空氣孔內(nèi)表層被鍍上金屬薄膜,通過改變另一空氣孔直徑以形成缺陷,并在這兩個空氣孔中填充磁流體材料。通過分析磁流體的折射率與溫度、磁場的關(guān)系,實(shí)現(xiàn)了對溫度和磁場的同時測量。實(shí)驗(yàn)結(jié)果表明,耦合諧振峰與SPR損耗峰在溫度升高時均產(chǎn)生藍(lán)移,磁場增強(qiáng)時均產(chǎn)生紅移。耦合諧振峰與SPR損耗峰的溫度靈敏度分別可達(dá)到-1.338 nm/℃和-1.575 nm/℃,磁場靈敏度分別為4.333μm/T和2.816μm/T。該傳感器不僅具有高靈敏度,而且實(shí)現(xiàn)了磁場和溫度的精確測量。
[Abstract]:A novel photonic crystal fiber sensor based on surface plasmon resonance (SPR) effect and defect coupling mechanism is designed. In the sensor structure, the inner surface of a particular air hole in the photonic crystal fiber cladding layer is coated with metal film, and the defect is formed by changing the diameter of the other air hole, and the magnetic fluid material is filled in the two air holes. By analyzing the relationship between the refractive index of magnetic fluid and temperature and magnetic field, the simultaneous measurement of temperature and magnetic field is realized. The experimental results show that both the coupling resonance peak and the SPR loss peak show a blue shift when the temperature rises and the red shift occurs when the magnetic field is enhanced. The temperature sensitivity of the coupled resonance peak and the SPR loss peak can reach -1.338 nm/ 鈩，

本文編號：2017651