摘要
利用胶体晶体的光子带隙的中心波长变化对折射率传感进行了实验研究。理论上对胶体晶体光子带隙的中心波长的变化进行了分析,设计模具制备了胶体晶体,并用扫描电镜对胶体晶体进行了表征和用红外光谱仪测试了胶体晶体的光子带隙。研究结果表明:胶体晶体光子带隙的测试结果与理论分析相一致。利用光纤间的耦合对胶体晶体的光子带隙的变化进行了测试和分析。分析结果表明:SiO2胶体晶体光子带隙的中心波长为1 445.5 nm,且在不同液体环境下,其中心波长发生变化,能够形成新的传感机理,为胶体晶体在传感上的应用进行了探索。
The changes of colloidal crystals photonic band-gap center wavelength were used to study the refractive index sensing by experiment. The changes in the center wavelength of the colloidal crystals photonic band-gap were analyzed in theory. The mould was designed to obtain colloidal crystals. Colloidal crystals were observed by scan microscope and the band-gap was measured by infrared spectrometer. The results show that the measured results are agreed with the theoretical analysis well. The couple of the fibers was used to measure the band-gap of colloidal crystals and the results were also analyzed. The results show that the position of center wavelength of the silica photonic band-gap is 1 445. 5 nm,and the band-gap of colloidal crystals can be used to measure the liquid refractive index in different liquid. The new sensing mechanism is formed which provides a new application of colloidal crystals in the sensing.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2014年第1期88-91,96,共5页
Journal of Henan University of Science And Technology:Natural Science
基金
河南省科技厅基金项目(132102210249)
河南省教育厅科学技术重点基金项目(12A510012
13B510990)
河南省教育厅骨干教师计划基金项目(2011GGJS-073)
江苏省光电重点实验室开放基金项目
关键词
胶体晶体
折射率
传感
光子带隙
colloidal crystals
refractive index
sensing
band-gap
