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部分相干幂指数相位涡旋光束的传输特性研究
部分相干光束 幂指数相位涡旋光束 传输特性 光强分布
2022/4/1
非临界压缩光场探测的实验方案研究
非临界 压缩光场 自发旋转对称破缺
2022/4/1
近日,北京航空航天大学的研究人员提出了一种新的漫射光学成像方法,利用结构光对吸收和散射效应进行解耦合,使用同时具有数百万调控单元和数十微秒调控速度的数字微镜阵列作为结构光调控器件,通过半色调(halftone)编码方法和散射介质的低通特性,打破了数字微镜阵列连续调(continuous-tone)编码造成的调控速度瓶颈,相比state-of-the-art,将成像速度提高了近100倍。该方法可以对...
针铁矿和赤铁矿吸附As(V)的EXAFS研究
As(V) 针铁矿 赤铁矿 X射线吸收精细结构光谱 吸附
2022/3/15
资剑、石磊课题组:实现光束在垂直入射情况下的横向位移(图)
光子晶体 动量空间偏振场 几何相位梯度 线偏振依赖
2022/5/16
基于激光介导富集的表面增强拉曼分析
激光介导的富集 表面增强拉曼散射 两相界面 石墨烯隔离的金纳米晶 自组装
2022/3/22
中国科学院长春光学精密机械与物理研究所中德中心在高速、低功耗垂直腔面发射激光器(VCSELs)方面取得新进展(图)
垂直腔面发射激光器 VCSELs 光互连技术 优化VCSEL腔内光子寿命
2022/4/22
EVALUATING THE STRUCTURAL INTEGRITY OF THE SAINT ANTONIO BARREL VAULT IN THE FORTRESS OF ALMEIDA BY COMBINING LASER SCANNER AND LIMIT ANALYSIS
Historical construction Trace Italienne fortress Masonry Laser scanner Structural diagnosis Limit Analysis
2019/3/4
Under the framework of the modern theory of restoration, this paper shows the experimental results obtained during the structural diagnosis of one of the most important master gates inside the militar...
MINERAL MAPPING USING CHANDRAYAAN-1 HYPERSPECTRAL (HYSI) DATA FROM MARE VAPORUM
Imaging Spectroscopy HySi,Compositional Mapping
2019/2/27
The imaging spectroscopy offers an opportunity to map and discriminate different minerals on the lunar surface which further helps to understand the origin, evolution process, and the crustal composit...
EXTRACTION OF BUILT-UP AREA BY COMBINING TEXTURAL FEATURES AND SPECTRAL INDICES FROM LANDSAT-8 MULTISPECTRAL IMAGE
Built-up Support Vector Machine Texture
2019/2/28
Remote sensing techniques provide efficient and cost-effective approach to monitor the expansion of built-up area, in comparison to other traditional approaches. For extracting built-up class, one of ...
COMPARATIVE STUDY ON DEEP NEURAL NETWORK MODELS FOR CROP CLASSIFICATION USING TIME SERIES POLSAR AND OPTICAL DATA
Deep neural networks CNNs LSTMs ConvLSTMs Crop classification
2019/2/28
Crop classification is an important task in many crop monitoring applications. Satellite remote sensing has provided easy, reliable, and fast approaches to crop classification task. In this study, a c...
FUSION OF HYPERSPECTRAL AND MULTISPECTRAL IMAGERY WITH REGRESSION KRIGING AND THE LULU OPERATORS; A COMPARISON
Image fusion Regression Kriging LULU operators Classification, Slums
2019/2/28
In this digital world, there is a large requirement of high resolution satellite image. Images at a low resolution may contain relevant information that has to be integrated with the high resolution i...