机构

• 长春光学精密机械与物... [1]
• 上海光学精密机械研究... [1]
• 合肥物质科学研究院 [1]
• 西安光学精密机械研究... [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2022 [1]
• 2008 [2]
• 2005 [1]

学科主题

• 激光技术;激光物理与... [1]
• 物理科学和化学 [1]

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Self-Focusing Property of Partially Coherent Beam With Non-Uniform Correlation Structure in Non-Linear Media 期刊论文  OAI收割 FRONTIERS IN PHYSICS, 2022, 卷号: 9 作者:  Lu, Lu;  Wang, Zhiqiang;  Yu, Jiayi;  Qiao, Chunhong;  Lin, Rong   |  收藏  |  浏览/下载：42/0  |  提交时间：2022/02/21 partially coherent beam  non-uniform correlation structure  optical coherence  coherence radius  self-focusing length   Temporal development of spatial solitons in biased photorefractive-photovoltaic materials 期刊论文  OAI收割 journal of modern optics, 2008, 卷号: 55, 期号: 10, 页码: 1571-1585 作者:  Lu, Keqing;  Zhao, Wei;  Chen, Yongzhuang;  Yang, Yang;  Zhang, Lei 收藏  |  浏览/下载：32/0  |  提交时间：2011/09/30 spatial optical soliton  self-focusing  transient state  photorefractive effect   Spatiotemporal evolution and multiple self-focusing of ultrashort pulses in a resonant two-level medium 期刊论文  OAI收割 phys. rev. a, 2008, 卷号: 78, 期号: 6, 页码: 63835 钮月萍; Xia Keyu; Cui Ni; 龚尚庆; 李儒新 收藏  |  浏览/下载：977/96  |  提交时间：2009/09/18 atom-photon collisions  high-speed optical techniques  Maxwell equations  optical pulse shaping  optical self-focusing  quantum optics  spatiotemporal phenomena   Self Imaging technique for refocusing an aerospace camera (EI CONFERENCE) 会议论文  OAI收割 ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China 作者:  Li W.;  Li W.;  Wang X.;  Wang X.;  Wang X. 收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25 A novel auto-focusing technique using a self imaging approach is developed for an aerospace camera having large aperture and long focus. Its optical system consists of an emitting system  receiving system  and two penta-prisms. Emitting system has three parts: a light source  beamsplitter  and aim slit. The receiving system includes a field lens  two separate lenses  and CCD. Using two little penta-prisms instead of a large planar mirror makes the autofocus system simple and compact. CCD was used as photoelectric converting device. A defocused signal is acquired by measuring the change of the two slit self-images position imaged on the CCD. A simple and compact construction of the auto-focusing system was proposed. The algorithm to calculate the moving of the slit-self images position was analyzed in order to achieve subpixel position estimation. The results of the experiments show a 10m focusing precision. The system demonstrates high resolution  easy adjustment and high reliability.