搜索结果: 1-15 共查到“optical”相关记录2423条 . 查询时间(0.234 秒)
Enhancing the Accuracy and Temporal Transferability of Irrigated Cropping Field Classification Using Optical Remote Sensing Imagery
irrigated field classification Landsat NDVI time series Gaussian mixture model interannual climate variability regional analysis
2023/12/1
Mapping irrigated areas using remotely sensed imagery has been widely applied to support agricultural water management; however, accuracy is often compromised by the in-field heterogeneity of and inte...
Stand Canopy Closure Estimation in Planted Forests Using a Geometric-Optical Model Based on Remote Sensing
canopy closure the GOST model fisheye camera photos transects LAI
2023/11/30
Canopy closure, which is the ratio of the vertical projection area of the crowns to the area of forest land, can indicate the growth and tending situation of a forest and is of great significance for ...
日前，Springer出版集团出版了由北京理工大学光电学院付时尧长聘副教授、高春清教授共同撰写的学术专著Optical Vortex Beams,Fundamentals and Techniques。该专著全面介绍了涡旋光场调控的理论与技术基础，同时介绍了该团队在涡旋光场调控方面的相关研究工作。该专著受Springer邀请撰写，是Springer系列图书Advances in Optics an...
Cornell researchers have developed an optical neural network (ONN) that can filter relevant information from a scene before the visual image is detected by a camera, a method that may make it possible...
重庆师范大学物理与电子工程学院张丁可教授课题组在国际权威期刊《Advanced Optical Materials》发表重要成果（图）
对称性波导结构 钙钛矿电泵浦激光器件 激发阈值
2022/12/28
2022年9月21日，重庆师范大学物理与电子工程学院光电功能材料重庆市重点实验室张丁可教授课题组通过设计一种对称性波导结构降低钙钛矿的激发阈值，并提高器件在运行过程中的稳定性，为钙钛矿电泵浦激光器件的实现提供了一定的指导意义。相关成果“Achieving Low Threshold and High Optical Gain Amplified Spontaneous Emission in MA...
Engineers working to miniaturize optical systems for modern electronics have seen great success when it comes to the most familiar components, the lenses and optical sensors. It’s been more challengin...
2022年1月2日，Advanced Optical Materials最新上线苏州大学李孝峰教授团队研究论文“自驱动钙钛矿丹探测器（Self-Driving Perovskite Dember Photodetectors）”，为利用丹倍效应实现高性能自驱动光电探测提供了一个有前景的方案。江南大学理学院青年教师曹国洋博士与苏州大学光电科学与工程学院硕士生张昊宇为论文共同第一作者，李孝峰教授为通讯...
近日，深圳大学医学部生物医学工程学院许改霞教授联合悉尼大学Ken-Tye Yong教授，总结了近红外二区光响应的聚集诱导发光材料，从分子设计、成像应用以及光动力治疗三个层次概括总结了该领域的最新进展。该成果发表在学术期刊《Advanced Optical Materials》（JCR一区TOP期刊，影响因子：9.926）上。医学部生物医学工程学院徐周睿博士后和江一航硕士研究生为论文的共同第一作者，...
《Optical Materials Express》发表广州大学物理与材料科学学院研究生和本科生合作研究成果（图）
广州大学物理与材料科学学院 Optical Materials Express 光探测
2020/7/27
近年来，无机钙钛矿材料在太阳能电池，发光器件，光探测，激光器件等信息和能源等领域应用潜力引起了国内外广泛关注。与传统 Si 和 III-V 半导体器件相比，无机钙钛矿材料生长和器件制作具有过程简单，且不需要高温和高真空制备环境等优点。作为三元无机钙钛矿材料体系中为数不多的宽禁带半导体，CsPbCl3钙钛矿具有带隙宽（3.1 eV），激子结合能高，优异的室温稳定性，载流子的迁移率高、扩散距离长等优点...
2020年5月4日，上海交通大学医疗机器人研究院院长杨广中教授作为通讯作者的研究论文《Fiber‐Optic SERS Probes Fabricated Using Two‐Photon Polymerization For Rapid Detection of Bacteria》以封面论文形式在《Advanced Optical Materials》杂志上发表。该研究提出了一种通过简单、精确与...
Tiny optical cavities could make quantum networks possible（图）
Tiny optical cavities quantum networks
2020/4/10
Engineers at Caltech have shown that atoms in optical cavities -- tiny boxes for light -- could lead to the creation of a quantum internet. Their National Science Foundation-funded work...
Optical properties of biomass-derived nanomaterials for sensing, catalytic, biomedical and environmental applications
Nanomaterials Biomass Green chemistry Sustainable energy Carbon dots
2024/2/28
Biomass-derived nanomaterials are becoming increasingly attractive if not indispensable in both academic and industrial fields within the past decades, coupled with growing interest in green chemistry...
Sensitivity of L-band vegetation optical depth to carbon stocks in tropical forests: a comparison to higher frequencies and optical indices
Vegetation optical depth Carbon density Tropical forests L-band Climate change
2024/2/4
Monitoring vegetation carbon in tropical regions is essential to the global carbon assessment and to evaluate the actions oriented to the reduction of forest degradation. Mainly, satellite optical veg...
Influence of Drone Altitude, Image Overlap, and Optical Sensor Resolution on Multi-View Reconstruction of Forest Images
UAV drone-based remote sensing geometric image resolution multi-view reconstruction reconstruction efficiency reconstruction quality structure from motion precision forestry
2024/2/4
Recent technical advances in drones make them increasingly relevant and important tools for forest measurements. However, information on how to optimally set flight parameters and choose sensor resolu...
LiMII(IO3)3 (MII = Zn and Cd): Two Promising Nonlinear Optical Crystals Derived from a Tunable Structure Model of α‐LiIO3（图）
非线性 光学晶体 LiMII
2023/3/28
Excellent nonlinear optical materials simultaneously meet the requirements of large SHG response, phase‐matching capability, wide transparency windows, considerable energy band‐gap, good thermal stabi...