光子晶体
材料科学
光子晶体光纤
光电子学
微结构光纤
折射率
纤维
光纤
带隙
光子学
光纤传感器
光学
塑料光纤
复合材料
物理
作者
Peng Zu,Chi Chiu Chan,Tianxun Gong,Yongxing Jin,Wei Chang Wong,Xinyong Dong
摘要
A magnetic field sensor based on combination of the magnetic fluid and the tunable photonic bandgap effect of photonic crystal fiber is proposed. The magnetic fluid with higher refractive index (>1.45) is prepared and filled into the air-holes of photonic crystal fiber to convert the index guiding fiber into photonic bandgap fiber. The proposed sensor takes full advantage of the ultrahigh sensitivity characteristic of photonic bandgap fiber and achieves a high sensitivity and resolution of 1.56 nm/Oe and 0.0064 Oe, respectively, which are 2-3 orders of magnitude better than other sensors based on magnetic fluid.
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