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Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共6条,第1-6条 帮助

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Plasmonic field-regulating characteristics of alloy-based multilaminar films in 300-800 nm 期刊论文  OAI收割
HELIYON, 2023, 卷号: 9, 期号: 2
作者:  
Kang, Yifan;  Yang, Hongtao;  Wang, Chao;  Li, Yongfeng;  Xu, Peng
  |  收藏  |  浏览/下载:26/0  |  提交时间:2023/05/05
Mechanism of Degradation Rate on the Irradiated Double-Polysilicon Self-Aligned Bipolar Transistor 期刊论文  OAI收割
ELECTRONICS, 2019, 卷号: 8, 期号: 6, 页码: 1-8
作者:  
Liu, MH (Liu, Mohan)[ 1,2 ];  Lu, W (Lu, Wu)[ 1 ];  Yu, X (Yu, Xin)[ 1,2 ];  Wang, X (Wang, Xin)[ 1 ];  Li, XL (Li, Xiaolong)[ 1 ]
  |  收藏  |  浏览/下载:24/0  |  提交时间:2020/04/03
A novel upconversion luminescent material Li+ - or Mg2+-codoped Bi3.84W0.16O6.24 TM3+, Yb3+ phosphors and their temperature sensing properties 期刊论文  OAI收割
Dyes and Pigments, 2018, 卷号: 151, 页码: 287-295
作者:  
Sun, Z.;  Liu, G. F.;  Fu, Z. L.;  Hao, Z. D.;  Zhang, J. H.
  |  收藏  |  浏览/下载:20/0  |  提交时间:2019/09/17
Investigation of changes in properties of water under the action of a magnetic field 期刊论文  OAI收割
Science in China Series G-Physics Mechanics & Astronomy, 2008, 卷号: 51, 期号: 11, 页码: 1621-1632
X. F. Pang; B. Deng
收藏  |  浏览/下载:26/0  |  提交时间:2012/04/13
The spectral feature analysis of semiconductor thin disk laser (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China
作者:  
Li J.;  Wang L.-J.;  Wang L.-J.;  Ning Y.-Q.;  Li J.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
The semiconductor thin disk laser is a new type of semiconductor laser. This work gives the basic operation function of semiconductor disk laser  and analyses the heat effect by the experimentally measured photoluminescence spectrum of the laser chip at different pump power and different temperature. We can see that: with increasing pump power  the thermal effects of the gain material becomes seriously and causes the saturation of carrier lifetime  so the electron-hole pair created in the absorbtion layer have no enough time to rate to one of the wells  and the non-radiative recombination happens in the barrier. When the thermal effects becomes stronger  the chip will not lasing. This phenomenon is from the smaller energy offset between barrier and quantum well. We optimize the original structure design and experimental technology. A non-absorbing AlGaAs layer who is transparent to the pumping and laser wavelength is added to confine the carriers in the quantum wells. At the same time a DBR with double reflecting band is induced to improve the absorbing efficiency of the pumping light. The single QW is replaced by the three narrow QWs  This three QWs structure can add the quantum state of QW  increase the recombination probability of carriers in the QWs and reduce the heat effect. The chemical etch equipment is also improved to control the surface unevenness to be within 50 nm.  
Analysis of the disturbance of remote aerial detector induced by laser (EI CONFERENCE) 会议论文  OAI收割
High-Power Lasers and Applications III, November 8, 2004 - November 11, 2004, Beijing, China
作者:  
Zhou J.;  Fu Y.;  Guo J.;  Guo J.
收藏  |  浏览/下载:41/0  |  提交时间:2013/03/25
It is important to study the interaction effect between laser and photoelectric detector. In most of the laser detecting systems  laser must irradiate the photoelectric detector. The detector will be saturated or damaged easily if the fluence of the laser is higher than the saturation threshold of the detector. Now  many photoelectric detectors are used in space. To achieve their interaction  "Cat's eye" effect is applied to find and locate the remote aerial detector by laser. The possibility and mechanism of disturbance to remote aerial detector induced by laser are analyzed  and the factors of influence are also analyzed. The fluence of laser on the photoactive area of remote aerial detector is estimated. With two samples of CCD and TV tracking system  the mechanism of soft damage to CCD and TV tracking system induced by laser are introduced. The saturation of CCD and crosstalk of CCD are the main reasons of disturbance. When the tracking system is used in wave-door tracking mode  it will lose its tracking target if the saturation or crosstalk of CCD can enter into wave-door. At last  the influence to disturbance induced by atmosphere effect is also analyzed.