共被期刊论文引用了4次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Identification of green tea origins by near-infrared (NIR) spectroscopy and different regression tools显示文摘In this study,near-infrared(NIR) spectroscopy was applied to efficiently and non-destructively identify Shandong green tea origins coupled with three different regression tools.Analysis results indicated that partial least squares(PLS) had better performance than back propagation artificial neural network(BP-ANN) and support vector machine(SVM).For PLS,the accuracies of identification were up to 100% for both training and testing.The results sufficiently demonstrate that NIR spectroscopy can be efficiently utilized for the non-destructive identification of green tea origins. | ZHUANG XinGang WANG LiLi CHEN Qi WU XueYuan FANG JiaXiong | 2017 | Science China(Technological Sciences)2017，60，1： | 13 |
| 2 | 周期调制DFB半导体激光器的双辅助相移对空间烧孔效应的抑制作用(英文)显示文摘由于分布反馈武(DFB)半导体激光器具有结构简单、频谱稳定等优点,在光通信领域具有十分广泛的应用.传统的DFB激光器在大电流条件下容易产生空间烧孔效应,从而造成单模特性不稳定为了抑制空间烧孔效应,本文基于重构等效啁啾技术设计了具有双辅助相移的周期调制光栅结构,并从理论和实验两个方面进行了研究,理论仿真和实验结果吻合.男外仿真计算了激光器谐振腔中光场分布的平坦因子,利用双辅助相移周期调制光栅结构DFB激光器,其腔内光场分布平坦程度得到明显提高.实验结果表明:温度25℃,注入电流50~160mA时,激光器边模抑制比均超过35dB,单模特性保持稳宅因此,本文论述的DFB激光器对空间烧孔效应具有明显抑制作用. | 郭仁甲 郑俊守 张云山 施跃春 李连艳 仇伯仓 卢林林 陈向飞 | 2015 | Science Bulletin2015，60，11： | 3 |
| 3 | 地基大口径望远镜库德光路误差建模显示文摘为更好地实现地基大口径望远镜库徳光路的集成装调,在三个层次上对其误差进行分析,并利用'Brownian Bridge'过程建立了库徳光路误差模型。首先,基于光径方程分析了库徳光路在大气扰动影响下的光线偏离情况;其次,分析了动态误差所引起的光学模糊以及重力作用下的累积印透效应;最后,根据'Brownian Bridge'过程,在充分考虑误差闭合链的情况下,建立了库徳焦点位置误差的模型。结果表明:即使在0.4℃/m的温差下,大气扰动也可以引起0.2″左右的偏差,且与2.3 mm的大气相干长度等效。同时,由于折光补偿的符号是一致的,故无法依靠多次测量平均抵消大气扰动的影响。根据改进的误差模型,库徳焦点的位置误差与基于独立同分布的假设所得的结果相比,降低了约20%,即更充分地考虑了误差闭合的情况。 | 郝亮 明名 吴小霞 吕天宇 王洪浩 | 2019 | 红外与激光工程2019，48，3： | 0 |
| 4 | Spontaneous emission rate and optical amplification of Er3+ in double slot waveguide显示文摘The spontaneous emission(SE) of Er3+ embedded in a double slot dielectric structure was studied by a quantum-electrodynamical formalism. The study shows that the slot width and the position of Er3+ in slot structure have a significant effect on the SE. The double slot waveguides were fabricated by embedding two low-index Er/Yb silicate material layers into high-index silicon. The radiative efficiency of Er3+ in the double slot waveguides is found to be higher than that of the single slot waveguide, which is consistent with the theory simulation. The 0.67 d B signal enhancement at 1.53 ?m in a 4.6-mm-long slot waveguide was observed pumped by 1476 nm laser. These results show the relevance of our model to study the SE processes in multilayer structures and are important for future realization of silicon-compatible active optical devices. | WANG XingJun JIANG LingJun GUO RuiMin YE Rui ZHOU ZhiPing | 2015 | Science China(Physics,Mechanics & Astronomy)2015，58，12： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员