中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共8条,第1-8条 帮助

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Thermo-mechanical design of the neutralizer for CRAFT negative ion-based neutral beam injection system 期刊论文  OAI收割
FUSION ENGINEERING AND DESIGN, 2021, 卷号: 169
作者:  
Wei, Jianglong;  Zhang, Zhaoyuan;  Yi, Wei;  Tao, Ling;  Liang, Lizhen
  |  收藏  |  浏览/下载:40/0  |  提交时间:2021/08/30
The Influence of Boundary Conditions on Modulus Measurement in Uniaxial Compression Tests 期刊论文  OAI收割
EXPERIMENTAL TECHNIQUES, 2017, 卷号: 41, 期号: 3, 页码: 327-330
作者:  
Dong J;  Huan Y(郇勇);  Liu W;  Feng YH(冯义辉);  Dai YJ
收藏  |  浏览/下载:48/0  |  提交时间:2017/08/15
A rigorous and unified mass lumping scheme for higher-order elements 期刊论文  OAI收割
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2017, 卷号: 319, 页码: 491-514
作者:  
Sivaselvan, M. V.;  Yang, Yongtao;  Zheng, Hong
  |  收藏  |  浏览/下载:26/0  |  提交时间:2018/06/05
Collimator at end of ring to target beam transport 期刊论文  OAI收割
HIGH POWER LASER AND PARTICLE BEAMS, 2015, 卷号: 27, 期号: 5, 页码: 55104
作者:  
Wang ZH(王梓豪);  Qu HM(屈化民);  Zhu DH(朱东辉);  Wang HJ(王海静);  Wang
收藏  |  浏览/下载:28/0  |  提交时间:2016/04/18
Influence of heterogeneity on 3D slope reliability and failure consequence 期刊论文  OAI收割
COMPUTERS AND GEOTECHNICS, 2014, 卷号: 61, 页码: 198-208
作者:  
Hicks, M. A.;  Nuttall, J. D.;  Chen, J.
  |  收藏  |  浏览/下载:30/0  |  提交时间:2018/06/05
CONVERGENCE AND QUASI-OPTIMAL COMPLEXITY OF A SIMPLE ADAPTIVE FINITE ELEMENT METHOD 期刊论文  OAI收割
ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE, 2009, 卷号: 43, 期号: 6, 页码: 1203-1219
作者:  
Becker, Roland;  Mao, Shipeng
  |  收藏  |  浏览/下载:25/0  |  提交时间:2018/07/30
Design of the infrared dual-band athermalized optical system based on HDE (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, June 17, 2009 - June 19, 2009, Beijing, China
作者:  
Zhang L.;  Sun Q.;  Wang H.;  Wang H.;  Wang H.
收藏  |  浏览/下载:97/0  |  提交时间:2013/03/25
Theoretical analysis of 980nm high power Vertical External-cavity Surface-emitting Semiconductor Laser (VECSEL) (EI CONFERENCE) 会议论文  OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Wang L.-J.;  Wang L.-J.;  Ning Y.-Q.;  Qin L.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
By using bottom-emitting structure  we will develop laser diode (LD) pumped 980 nm VECSEL with active region of InGaAs/GaAsP/AlGaAs system. Because the thickness of barrier layer and absorption layer exceed that of quantum well  single well approximation model (KP method) can be used to calculate the band structure of VECSEL. The Schrodinger equation of finite deep potential well can be adopted to calculate the energy level structures of electron  heavy and light holes. According to the transition selection rule  we theoretically obtained the emitting wavelength of VECSEL and calculated quasi-Femi energy of valence band and conduction band based on the analysis of energy level structure of electron and holes. By analyzing the gain of strained quantum wells  we calculated the gain of VECSEL using transition matrix elements of electron  heavy and light holes. We give out the threshold gain  output power and other characteristic parameters. We will study the configuration of VECSEL and pumping scheme. We designed external cavity mirror  active region and bottom-emitting structure. A LD-pumped vertical external cavity surface-emitting laser whose output power is greater than 1.0 W can be predicted.