论文部分内容阅读
通过毛细生长法沉积了具有特定光子禁带的胶体光子晶体,并用浸渍法在光子晶体孔隙内浸润了Rhodamine6G(R6G)乙醇溶液,制备了掺杂R6G的光子晶体.结果发现,光子晶体的禁带对R6G的发光谱有影响,能够强烈限制光子的发射从而抑制特定波长的发光强度.改变掺杂R6G的浓度,会引起间隙介质平均折射率的变化,从而引起光子带隙的移动.采用Nd:YAG激光器三倍频354.5nm激光对掺杂了R6G的光子晶体进行了激发,光谱显示没有受激发射,这一点与相关文献是一致的.我们对光子晶体中R6G的聚集态进行了SEM分析,发现R6G呈束状聚集.与胶体光子晶体的[111]方向相比,该束状聚集体更倾向于沿着[100]方向生长.本实验对于开展固态激光器的研究以及三维阵列的应用研究具有一定指导意义.
A photonic crystal with a specific photonic band gap was deposited by capillary growth method and a rhodamine6G (R6G) ethanol solution was infiltrated into the pores of the photonic crystal by impregnation method to prepare a photonic crystal doped with R6G. The results showed that the band gap of the photonic crystal On the R6G emission spectrum can strongly limit the emission of photons and thus inhibit the emission intensity of a specific wavelength.Changing the concentration of R6G will cause the change of the average refractive index of the interstitial medium and cause the photonic band gap to move.Using Nd: YAG laser triplet 354.5nm laser doped R6G-doped photonic crystals were excited, the spectrum shows no stimulated emission, which is consistent with the literature.We have carried out the analysis of photoluminescence R6G aggregation state SEM, It was found that R6G clusters in clusters, which tend to grow in the [100] direction compared with the [111] orientation of colloidal photonic crystals.In this experiment, the research on solid-state lasers and the application of three- A certain guiding significance.