In addition this technology is implemented in this experiment . when liquid - core optical fiber is combined with raman spectrum , the optical intensity of raman spectrum can be enhanced with the increasing length of liquid - core optical fiber 实验结果表明，在液芯光纤内产生喇曼效应是随着泵浦激光束与喇曼介质作用体积增加，从而使被激发的喇曼光在光纤的传播中不断被累积而得以增强。
The nir - sers technique , combined sers with ft - raman , due to the advantages such as high sensity , a little amount of sample and quenching fluorescence , should be the best detective way to obtain the perfect raman spectrum of those above molecules 采用sers技术与ft - raman相结合的nir - sers手段，由于其灵敏度高、样品用量少、可以高效淬灭荧光等优点，可以获得非常理想的nir - sers谱。
The x - ray diffraction patterns and raman spectra indicated that zns fully transformed into zno with a polycrystalline hexagonal wurtzite structure when zns thin films were oxidized at annealing temperature of above 700 oc in an oxygen ambient X射线衍射（ xrd ）和拉曼实验结果表明硫化锌（ zns ）薄膜在高于700oc热氧化处理后，硫化锌（ zns ）全部转化为氧化锌（ zno ） ，且是六角纤锌矿的多晶薄膜。
In part four , the results of cryogenic raman spectra investigation show temperature dependence of rbm and gm at low temperature is greatly different from at high temperature , and the intensity of most feature is not reversible at low temperature 在单壁碳纳米管的低温拉曼光谱测量过程中，发现rbm和gm的拉曼频移在低温下的温度效应和在高温时的温度效应存在着很大的区别，且特征峰的强度的变化是不可逆的。
This phd thesis is divided into two parts : ( 1 ) the study on vibrational raman and infrared spectra , ( 2 ) the study on electronic spectra , including the photoluminescence , visible absorption , electronic raman spectra and the electronic infrared spectroscopy 论文共分两部分： ( 1 )对振动拉曼光谱和振动红外光谱的研究； ( 2 )对电子光谱，包括光致发光谱、可见光吸收谱、电子拉曼光谱和电子红外光谱的研究。
For ga5p5 cluster , the most stable structure is a cube - based structure . the calculation of the density of states for ga5p5 shows semiconductor - like property . the ir and raman spectra , the dipole polarizability anisotropy invariant and hyperpolarizability are also calculated 对于ga _ 5p _ 5团簇的最稳定结构，用b3lyp 6 - 31 + g ~ *又进行了优化，计算了态密度，发现其具有半导体的性质，还计算了红外和raman谱以及极化率，超极化率。
Using xrd and raman spectrum , in the temperature range of 650 - 850 , the rule of graphitization of multiwalled carbon nanotubes synthesized by catalytic decomposition of c2h2 was found : graphitization of multiwalled carbon nanotubes was improved with the increase of growth temperature 采用xrd和raman光谱，在650 - 850温度范围内，研究了催化裂解乙炔法制备的多壁纳米碳管的石墨化程度变化规律，结果表明纳米碳管的石墨化程度随生长温度的提高而提高。
Surface - enhanced raman spectra are presented for tree pollen ( cottonwood and redwood pollen ) and a bacterium ( escherichia coli ) , and the e . coli spectra are compared with results obtained from the literature and with results obtained previously by mixing various concentrations of the bioanalyte with the silver colloid 增加表面积后之拉曼光谱发现于树花粉(棉白杨及红杉)及一种细菌(大肠杆菌) ，将大肠杆菌之光谱与文献中及一系列混和浓度之光谱进行比较。
As to the study on the electronic spectra of the rare earth , the main results are as follows . ( 1 ) based on a reconstructed raman microprobe , a new method of obtaining high - resolution visible region absorption spectra is designed . the method makes it possible to establish a relationship among four kinds of spectra of the rare earth specimen , including visible region absorption spectra , photoluminescence spectra , infrared spectra and raman spectra 在电子光谱的研究上，主要结果如下： ( 1 )设计了一种利用拉曼光谱仪获取可见光吸收谱的新方法，利用这种方法所获得的高分辨可见光吸收谱可建立起稀土化合物的拉曼光谱、光致发光谱和红外光谱之间的重要联系，它对识别各种复杂的稀土光谱、探讨发光和吸收机理有重要的作用。
