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2007年《光学学报》作者索引
【出 处】
：
光学学报
【发表日期】
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2007年27期
其他文献
We apply graph matching method to detect infrared small moving targets using image sequences. Candidates (interest points) detected in the first frame form one graph and the same candidates in the last frame form another one. The real moving targets are e
为了研制出高质量光学表面的离轴非球面碳化硅反射镜，提出一套包括铣磨成型、研磨、粗抛光、表面改性以及精密抛光等工序的完备的离轴非球面碳化硅反射镜加工工艺规范。采用Ultrasonic 100-5数控加工机床直接将Φ600 mm碳化硅反射镜铣磨成离轴非球面，铣磨后反射镜面形精度的峰谷(PV)值为17.17 μm。利用计算机控制光学表面成型（CCOS）技术对离轴非球面碳化硅反射镜进行研磨和粗抛光，使其面形精度的均方根(RMS)值达到0.102λ（λ=0.6328 μm）。采用离子束辅助沉积(IBAD)表面改性技
The perturbation theory of matrices is applied to ray transfer matrices (RTMs) to describe an optical component with aberration. A quantitative description of the perturbation extent corresponding to aberration strength is provided using condition numbers
An ultraviolet (UV) Raman lidar system at 354.7 nm has been developed for accurately measuring the aerosol extinction profiles. A spectroscopic filter combining a high-spectral-resolution grating with two narrowband mirrors is used to separate the vibrati
The combination of lens and pinhole limits the enhancement of the laser output power in the high-power laser system. Low-pass spatial filter without focusing can surmount the drawbacks of the pinhole filters. The low-pass spatial filters based on multilay
相位敏感光时域反射计(φ-OTDR)可以有效地检测光纤的振动信息,但受传感光纤长度的限制,可检测的振动频率范围一般在几百赫兹到几千赫兹之间。为了提高振动检测范围,组建了基于外差相干检测的φ-OTDR系统,采用I/Q解调方法获得传感光纤散射光信号的相位信息,对此相位信息在空间域与时域上相继进行差分相位解调,从而实现对光纤中高频振动信号的分布式检测。理论上分析了高频振动检测方案的可行性,并在实验中有效解调出了频率为500 kHz的振动信号,传感距离达到了23 km。
Effect of oxygen flow rate on the properties of SiOx films deposited by reactive magnetron sputterin
SiOx (x=0--2) films were deposited on BK-7 substrates by a low frequency reactive magnetron sputtering system with the oxygen flow rate (OFR) changing from 0 to 30 sccm. The samples were characterized by atomic force microscopy, spectrophotometer, and X-r
结合干涉光刻和磁控溅射制备了一维周期性起伏的磁性多层薄膜。利用扫描探针显微镜对样品的微结构进行表征,利用椭偏仪和磁光测量系统对样品的光学性能参数和磁光克尔效应进行测试和研究。实验结果发现,磁性多层薄膜磁光性能得到极大的提升,磁光增强的克尔谱峰值与条带的宽度、中间层二氧化铪层的厚度有关;利用介质层的厚度可调制复合薄膜的磁光特性。进一步研究发现横克尔效应的增强现象。理论计算的结果证实,磁光增强源于光学腔干涉共振和磁等离激元的耦合效应。