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Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共9条,第1-9条 帮助

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The interior inverse electromagnetic scattering for an inhomogeneous cavity 期刊论文  OAI收割
Inverse Problems, 2021, 卷号: 37, 期号: 2
作者:  
Zeng,Fang;  Meng,Shixu
  |  收藏  |  浏览/下载:16/0  |  提交时间:2021/04/26
Design of RF coupler for C-ADS injector II RFQ 期刊论文  OAI收割
原子能科学技术;Yuanzineng Kexue Jishu/Atomic Energy Science and Technology, 2015, 卷号: 49, 页码: 539-542
作者:  
He, Yuan;  Shi, Ai-Min;  Sun, Lie-Peng;  Zhang, Zhou-Li;  Lu, Liang
  |  收藏  |  浏览/下载:28/0  |  提交时间:2016/03/29
A 4 mJ femtosecond Ti : sapphire regenerative amplifier at 1 kHz repetition rate 期刊论文  OAI收割
ACTA PHYSICA SINICA, 2014, 卷号: 63, 期号: 10
Shen, ZW; Wang, ZH; Fan, HT; Qin, S; Teng, H; He, P; Wei, ZY
收藏  |  浏览/下载:43/0  |  提交时间:2015/04/14
Bound-state solitons in a linear-cavity fiber laser mode-locked by single-walled carbon nanotubes 期刊论文  OAI收割
journal of modern optics, 2014, 卷号: 61, 期号: 12, 页码: 980-985
作者:  
Guo, J.
收藏  |  浏览/下载:26/0  |  提交时间:2015/03/26
Realization of double resonance for a bright frequency-tunable source of narrowband entangled photons 期刊论文  OAI收割
CHINESE PHYSICS B, 2011, 卷号: 20, 期号: 2
作者:  
Yang Jian;  Zhao TianMing;  Zhang Han;  Yang Tao;  Bao XiaoHui
  |  收藏  |  浏览/下载:23/0  |  提交时间:2021/12/13
A compact and efficient four-wavelength Q-switched Nd:YAP laser 期刊论文  OAI收割
Laser Physics, 2010, 卷号: 20, 期号: 4, 页码: 745-749
C. H. Huang, G. Zhang, Y. Wei, H. Y. Zhu and L. X. Huang
收藏  |  浏览/下载:31/0  |  提交时间:2012/11/02
Flow bifurcation due to opposing buoyancy in two vertically connected open cavities 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2006, 卷号: 49, 期号: 19-20, 页码: 3298-3312
作者:  
Li, Yuguo;  Xu, Pengcheng;  Qian, Hua;  Deng, Qi-Hong;  Wu, Jingyi
  |  收藏  |  浏览/下载:28/0  |  提交时间:2018/07/30
Design study on 1.3GHz mono-cell high gradient low loss superconducting cavity 期刊论文  OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2006, 卷号: 30, 期号: 4, 页码: 354-358
作者:  
Ge MQ(葛明骐);  Zhao SC(赵升初);  Sun H(孙虹);  Gao J(高杰);  Ge, MQ
收藏  |  浏览/下载:42/0  |  提交时间:2016/06/27
Study on LD-pumped Nd:YAG laser cutter (EI CONFERENCE) 会议论文  OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Zhang G.;  Zhang G.;  Zhang G.;  Zhang J.;  Zhang J.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
The theory of laser cutter and the technology neck is analyzed. We can conclude that it is almost impossible to deal with the waste thick silicon wafers which are yielded in producing silicon wafers by conventional eroding or diamond cutting  when the cutting velocity equals 100mm/min  while it is also unperfected with ecumenical laser cutter without good beam quality or precise laseroptics system. It is represented that high average power and high repetition rate laser with good beam quality and precise laseroptics system are pivotal to obtain excellent cutting effect such as thick groove depth  double-layer 0.75mm thick silicon wafer can be penetrated.. The cross section is fine and the groove is narrow  rapid cutting speed  the cutting quality meets the expecting demand.  fine kerf section without considering the effect of technique. Considering laser medium thermal lens effect and thermal focal length changing with pumping power  using plano-convex high reflectivity mirror as the back cavity mirror to compensate the heat lens influence  a /4 waveplate to compensate heat -induced birefraction  utilize the Nd:YAG self- aperture effect  more than 50 W average power 1.064 um IR output is obtained with beam quality factor (M2) equals 3.19. Through the LD-Pumped Nd:YAG laser cutter we developed with short focus length negative spherical aberration focusing lens  double axis linear step motor positioning system  suitable beam expander multiplying factor  appropriate diameter of exit beam aperture  proper repetition rate  when the cutting velocity equals 400mm/min  0.75mm thick silicon wafer can be penetrated