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Your search keyword '"李 宇"' showing total 20 results
Start Over Author "李 宇" Topic atomic and molecular physics, and optics
20 results on '"李 宇"'

3. 304不锈钢激光抛光的参数优化及抛光层性能分析

Author

李道齐 Li Daoqi, 王涛 Wang Tao, 杨紫璠 Yang Zifan, 李宇彬 Li Yubin, and 王书文 Wang Shuwen

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2023

5. 光电探测器表面损伤状态偏振成像式探测系统

Author

胡玮娜 Hu Weina, 吕勇 Lv Yong, 耿蕊 Geng Rui, 李宇海 Li Yuhai, and 牛春晖 Niu Chunhui

Subjects
Space and Planetary Science, Aerospace Engineering, Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics
Published
2022

6. 可变焦叶绿体光学微透镜

Author

李姮 Li Heng, 陈熙熙 Chen Xixi, 张垚 Zhang Yao, 李宇超 Li Yuchao, and 李宝军 Li Baojun

Subjects
Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2022

8. 面向空间平台的小型化量子纠缠源

Author

周晓妍 Zhou Xiaoyan, 李波 Li Bo, 李宇怀 Li Yuhuai, 曹原 Cao Yuan, 印娟 Yin Juan, and 彭承志 Peng Chengzhi

Subjects
Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2022

10. Development of beam brightness enhancement based on diamond Raman conversion

Author

王雨雷 Yulei Wang, 吕志伟 Zhiwei Lv, 李宇琪 Yuqi Li, 丁洁 Jie Ding, 白振旭 Zhenxu Bai, 陈晖 Hui Chen, 齐瑶瑶 Yaoyao Qi, and 杨学宗 Xuezong Yang

Subjects
Brightness, Materials science, business.industry, Gain, Aerospace Engineering, Diamond, engineering.material, Laser, Atomic and Molecular Physics, and Optics, law.invention, symbols.namesake, Space and Planetary Science, law, Brillouin scattering, engineering, symbols, Optoelectronics, Laser beam quality, Electrical and Electronic Engineering, business, Raman spectroscopy, Raman scattering
Abstract

High brightness laser sources with different wavelengths play an important role in the fields such as defense, industrial, and life sciences etc. However, due to the intrinsic spectral and thermophysical properties of current available laser gain materials, it is difficult to take into account the wavelength and output power of the traditional inversion lasers, which even leads to the decrease of beam brightness. To overcome this problem, beam cleanup by using nonlinear optical technology has been carried out in recent years, which is directly transferring the low beam quality generated from inversion lasers into the high through the effects such as stimulated Raman or Brillouin scattering. Among them, with excellent properties such as high Raman gain coefficient, high thermal conductivity and wide spectral transmission range, diamond exhibits excellent beam brightness enhancement characteristics while realizing high efficiency Raman conversion, which provides a new technical path to generate high power and high brightness laser beam. Here, the development of brightness enhancement based on first-order and cascaded Raman conversion of diamond was reviewed, and its future applications were discussed.

Published
2021

12. SAR Image Target Recognition Based on Improved Residual Attention Network

Author

史宝岱 Shi Baodai, 李瑶 Li Yao, 李宇环 Li Yuhuan, and 张秦 Zhang Qin

Subjects
Computer science, business.industry, Attention network, Computer vision, Artificial intelligence, Electrical and Electronic Engineering, Residual, business, Atomic and Molecular Physics, and Optics, Image (mathematics)
Published
2021

13. Optical remote sensing object detection based on fused feature contrast of subwindows

Author

孙 皓 Sun Hao, 李湘眷 Li Xiang-juan, 李 宇 Li Yu, and 王彩玲 Wang Cai-ling

Subjects
business.industry, Computer science, media_common.quotation_subject, computer.software_genre, Atomic and Molecular Physics, and Optics, Object detection, Electronic, Optical and Magnetic Materials, Remote sensing (archaeology), Feature (computer vision), Contrast (vision), Computer vision, Artificial intelligence, Data mining, business, computer, media_common
Published
2016

16. Multi-Classification and Recognition of Hyperspectral Remote Sensing Objects Based on Convolutional Neural Network

Author

赵泽通 Zhao Zetong, 李宇海 Li Yuhai, 赵红东 Zhao Hongdong, 张洁 Zhang Jie, and 闫苗 Yan Miao

Subjects
Remote sensing (archaeology), Computer science, business.industry, Hyperspectral imaging, Pattern recognition, Artificial intelligence, Electrical and Electronic Engineering, business, Convolutional neural network, Atomic and Molecular Physics, and Optics
Published
2019

18. Classifier for Recognition of Fine-Grained Vehicle Models under Complex Background

Author

张洁 Zhang Jie, 赵红东 Zhao Hongdong, 赵泽通 Zhao Zetong, 闫苗 Yan Miao, and 李宇海 Li Yuhai

Subjects
Computer science, business.industry, Pattern recognition, Artificial intelligence, Electrical and Electronic Engineering, business, Classifier (UML), Atomic and Molecular Physics, and Optics
Published
2019

19. Dual-microring Resonator Sensor for Nanoparticle Detection

Author

魏兵 Wei Bing, 杨建义 Yang Jian-yi, 王明华 Wang Minghua, 岳平原 Yue Ping-yuan, 何平 He Ping, 陈剑奇 Chen Jian-qi, and 李宇波 Li Yu-bo

Subjects
Resonator, Materials science, business.industry, Optoelectronics, Nanoparticle, DUAL (cognitive architecture), business, Atomic and Molecular Physics, and Optics
Published
2016

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