摘要
拉曼散射是一种弱效应。从拉曼散射及其散射截面角度出发,通过将光子约束在一个极小的截面上并延长传输,即增加了拉曼散射截面,从而达到增强拉曼散射的效果。而光子晶体光纤特有的光子带隙效应与此方式类似,可将某一特定波长的光束缚在中心孔芯内传输。运用光子晶体光纤技术,设计了光子晶体光纤的拉曼效应增强系统。最后通过实验发现:光子晶体光纤用于拉曼效应增强是可行的,为后续微量物质、气体等检测提供了一种比较高效的分析方法。
Raman scattering is a weak effect. From the Raman scattering and the scattering cross section theory,constraining the photons in a minimal section and extending the transmission,which increases the Raman scattering cross section,so as to enhance Raman scattering effect. At the same time,the photonic crystal fiber unique photonic band gap is similar to this way,which makes the transmission of a specific wavelength of light bounded in the central air hole. Using photonic crystal fiber technology designs the system of the photonic crystal fiber for Raman enhancement effect. Finally experiments show that photonic crystal fiber for Raman enhancement is feasible,thus providing a more efficient method of subsequent analysis of trace substances,gases and other testing.
引文
[1]程光煦.拉曼布里渊散射:原理及应用.北京:科学出版社,2001.
[2]吴雷.基于表面增强拉曼散射(SERS)技术的核酸(脱氧核酶)研究:[学位论文].长春:吉林大学,2011.
[3]尹建华.溶液浓度对单分子拉曼光谱散射截面影响的研究:[学位论文].长春:吉林大学,2005.
[4]房文汇.液芯光纤中的共振吸收拉曼散射光谱研究:[学位论文].长春:长春理工大学,2006.
[5]杨姝.溶液分子拉曼散射截面的研究:[学位论文].长春:长春理工大学,2011.
[6]李占龙.β-胡萝卜素分子结构有序性对拉曼散射截面影响的研究:[学位论文].长春:吉林大学,2009.
[7]马锡英.光子晶体原理及应用.北京:科学出版社,2010.
[8]郭玉彬,霍佳雨.光纤激光器及其应用.北京:科学出版社,2008.