Title :
Evanescent Field Absorption Sensor in Aqueous Solutions using a Defected-core Photonic Crystal Fiber
Author :
Yu, Xiaoyuan ; Sun, Yue ; Shum, Ping
Author_Institution :
Network Technol. Res. Centre, Nanyang Technol. Univ., Singapore, Singapore
Abstract :
A new absorption sensor is developed using a defected-core photonic crystal fiber with enhanced evanescent field. Excellent linearity is obtained between absorbance and concentration and length. The sensitivity is increased by more than sixty times compared with perpendicular direction measurement.
Keywords :
fibre optic sensors; light absorption; photonic crystals; aqueous solutions; evanescent field absorption sensor; perpendicular direction measurement; photonic crystal fiber; Absorption; Biomedical optical imaging; Chemicals; Educational technology; Optical propagation; Optical sensors; Optical surface waves; Optoelectronic and photonic sensors; Photonic crystal fibers; Silicon compounds;
Conference_Titel :
Optical Fiber communication/National Fiber Optic Engineers Conference, 2008. OFC/NFOEC 2008. Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-55752-856-8
DOI :
10.1109/OFC.2008.4528048
