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浏览/检索结果: 共14条，第1-10条 帮助

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Theoretical and experimental studies on a compact stretcher with large spectral bandwidth and high transmission efficiency 期刊论文  OAI收割
optik, 2014, 卷号: 125, 期号: 18, 页码: 5225
作者:  Yang, Qingwei;  Liu, Mingwei;  Xie, Xinglong;  Kang, Jun;  Guo, Ailin
收藏  |  浏览/下载：29/0  |  提交时间：2016/11/28
Generation of broadband laser by high-frequency bulk phase modulator with multipass configuration 期刊论文  OAI收割
appl. optics, 2014, 卷号: 53, 期号: 35, 页码: 8229
作者:  Zhang, Peng;  Jiang, Youen;  Zhou, Shenlei;  Fan, Wei;  Li, Xuechun
收藏  |  浏览/下载：34/0  |  提交时间：2016/11/28
Generation of broadband laser by high-frequency bulk phase modulator with multipass configuration 期刊论文  OAI收割
appl. optics, 2014, 卷号: 53, 期号: 35, 页码: 8229
作者:  Zhang, Peng;  Jiang, Youen;  Zhou, Shenlei;  Fan, Wei;  Li, Xuechun
收藏  |  浏览/下载：26/0  |  提交时间：2016/11/28
The influence of output pulse spectral shape and bandwidth on pulse contrast in the chirped pulse amplification 期刊论文  OAI收割
optik, 2014, 卷号: 125, 期号: 3, 页码: 1448
作者:  Yang, Qingwei;  Liu, Mingwei;  Xie, Xinglong;  Kang, Jun;  Guo, Ailin
收藏  |  浏览/下载：30/0  |  提交时间：2016/11/28
Generation of broadband laser by high-frequency bulk phase modulator with multipass configuration 期刊论文  OAI收割
appl. optics, 2014, 卷号: 53, 期号: 35, 页码: 8229
作者:  Zhang, Peng;  Jiang, Youen;  Zhou, Shenlei;  Fan, Wei;  Li, Xuechun
收藏  |  浏览/下载：16/0  |  提交时间：2016/11/25
The influence of output pulse spectral shape and bandwidth on pulse contrast in the chirped pulse amplification 期刊论文  OAI收割
optik, 2014, 卷号: 125, 期号: 3, 页码: 1448
作者:  Yang, Qingwei;  Liu, Mingwei;  Xie, Xinglong;  Kang, Jun;  Guo, Ailin
收藏  |  浏览/下载：29/0  |  提交时间：2016/11/28
Theoretical and experimental studies on a compact stretcher with large spectral bandwidth and high transmission efficiency 期刊论文  OAI收割
optik, 2014, 卷号: 125, 期号: 18, 页码: 5225
作者:  Yang, Qingwei;  Liu, Mingwei;  Xie, Xinglong;  Kang, Jun;  Guo, Ailin
收藏  |  浏览/下载：24/0  |  提交时间：2016/11/28
Ground-based measurement of the space object temperature (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Wu Y.-H.;  Wang J.-L.;  Wang J.-L.
收藏  |  浏览/下载：71/0  |  提交时间：2013/03/25
Multi-band IR data of the space object can be used in the fields of object identification and space surveillance. The radiation characteristics of the object can be obtained by analyzing these data. These characteristics include temperature  area  emissivity  absorptivity  reflectivity  and temporal trends. The infrared radiation temperature of the space object is an important characteristic from which the object's working state in orbit can be judged. We apply the method of measuring the spectral distribution of the object and fit the data to the Planck formula to determine the temperature. In order to improve the precision of measuring temperature on the space object  we optimize the centric wavelength and the bandwidth effectively. Also  we use a simple program to implement temperature measurement. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Fluorene-Based Copolymers Containing Dinaphtho-s-indacene as New Building Blocks for High-Efficiency and Color-Stable Blue LEDs 期刊论文  OAI收割
macromolecular rapid communications, 2009, 卷号: 30, 期号: 9-10, 页码: 816-825
Guo X; Cheng YX; Xie ZY; Geng YH; Wang LX; Jing XB; Wang FS
收藏  |  浏览/下载：16/0  |  提交时间：2010/05/04
Analysis of spectrum narrowing of diode laser bar (EI CONFERENCE) 会议论文  OAI收割
Semiconductor Lasers and Applications III, November 12, 2007 - November 13, 2007, Beijing, China
作者:  Liu Y.
收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25
Laser diode bar (LDB) are used increasingly often for many applications  but spectral bandwidth of LDB are generally approximately 2-4nm  far too wide for many demanding applications  e.g. spin-exchange optical pumping  terahertz generation  and lidar. External-cavity feedback can improve the spectral properties of LD or LDB. However  spectrum narrowing of LDB is more difficult than that of LD. Bar curvature (i.e. "smile") produced in the manufacturing process affects the spectrum narrowing greatly. By geometrical optics approach and ORIGIN software  smile which can be corrected by plano-convex cylindrical lens is simulated and the result is in good agreement with experiment. The selection of grating which is also a critical factor of spectrum narrowing will be stated. Finally  an external cavity consisting of fast axis collimator  two plano-convex cylindrical lens and a diffraction grating is used. The scheme is implemented on a 19-element LDB and yields 3-fold reduction in spectral linewidth under the situation that all optical elements in the system which are not optimized. Further  we use a slit in the experiment and analyze the spectrum narrowing of each element in LDB.