双波长液芯光波导传感方法的研究  

Study on dualwavelength density detyection with liquid core wave-guide.

作　　者：张季熊[1] 周佐平[1] 方渝东 

机构地区：[1]华南理工大学,应用物理系510641

出　　处：《光电子．激光》1997年第1期14-18,共5页Journal of Optoelectronics·Laser

基　　金：国家和广东省自然科学基金

摘　　要：本文介绍一种新的浓度传感方法——双波长液芯光波导法。其理论依据是物质所具有的反常色散特性。介绍了这种方法的原理与设计原则;讨论了对单组分、多组分以及有混浊干扰的液体所作的实验。结果表明,该方法具有双波长检测方法和光波导传感方法的优点,能实现物质的选择性测量。A new density measurement method of dualwavelength detection with liquidcore optical wave-guide is presented. The theoretical basis of this method is anmalous dispersion of matter. The principle of the sensitivity and the measurement of the method is introduced. The design principle for experiment set is presented. The experiments on the measurement of single-slovent, multiple-solvent and single-solvent with muddy interferences are discussed. The results showed that the method has the advantages of the dualwavelength detection method and optical wave-guide sensing method and we can made the selective detection by this method and this sensing system has a wide applicable prospect.

关 键 词：光波导 液体浓度 反常色散 双波长检测 

分 类 号：TN252[电子电信—物理电子学]