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CAS IR Grid
机构
长春光学精密机械与物... [4]
大连化学物理研究所 [1]
上海光学精密机械研究... [1]
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OAI收割 [6]
内容类型
会议论文 [4]
期刊论文 [2]
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2018 [1]
2012 [1]
2008 [3]
2005 [1]
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光存储 [1]
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Controlled Synthesis of Au-36(SR)(24) (SR = SPh, SC6H4CH3, SCH(CH3)Ph, and SC10H7) Nanoclusters
期刊论文
OAI收割
ACTA PHYSICO-CHIMICA SINICA, 2018, 卷号: 34, 期号: 7, 页码: 786-791
作者:
Li Zhimin
;
Li Gao
;
Zhou Yang
;
Zheng Kai
  |  
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2019/06/20
Gold Cluster
Au-36(Sr)(24)
Control Synthesis
Size-focusing
Ligand Effect
Design and experimental research of a new type focus mechanism used in space-based telescope (EI CONFERENCE)
会议论文
OAI收割
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
作者:
Wang D.
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2013/03/25
The position of focal plane will be changed because of temperature fluctuation and vacuum environment. In order to make the telescope work well
positioning accuracy of the mechanism is 0.008mm. The performance satisfies the need of precision
a focusing mechanism is needed. To majority of large space-based telescopes
and the scheme design is reasonable and practicable. 2012 IEEE.
the general way to do this would be to use a reflector
which was located in the backfocal distance. One of typical schemes of this mechanism was introduced
however
because of the big axial size
the mechanism can't be used when the size of the enclosure was limited. A new type of focusing mechanism was introduced
which has such advantages of small size
high accuracy and low mass. The design and test methods had been discussed. According to the results
the repeatability positioning accuracy is 0.0025mm
High power diode laser with beam coupling (EI CONFERENCE)
会议论文
OAI收割
Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China
作者:
Wang L.
;
Liu Y.
;
Wang L.
;
Liu Y.
;
Liu Y.
收藏
  |  
浏览/下载:61/0
  |  
提交时间:2013/03/25
As the increasing applications of the semiconductor lasers in the laser processing
the single 2-D stack optic-power density has not satisfied the actual requirements. It demands to couple several diode laser stack beams to one to improve the brightness
and it becomes the central issue to adopt the appropriate beam coupling technology which would offer high quality and high efficiency. In this paper
it mainly introduces the beam shaping and the technology of spatial coupling
polarization coupling
and wavelength coupling. The coupling key elements are presented and indicated. Finally
the development of the diode laser on beam coupling in our country fell behind through analyzing the statement of the world. Our lab is studying on polarization coupling and wavelength coupling. We gain some results by phase
which the polarization coupling efficiency can achieve 90% for two LD stacks with seven bars whose luminous wavelength is 975nm and980nm.By two 808nm diode laser coupling
the efficiency of 60% can be achieved after focusing to the beam size of 22mm2. 2008 SPIE.
Central hole effect on Whispering-Gallery-Mode of triangular lattice photonic crystal microcavity (EI CONFERENCE)
会议论文
OAI收割
Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China
作者:
Zhang Y.
;
Wang L.
;
Wang L.
;
Wang L.
;
Wang Z.
收藏
  |  
浏览/下载:25/0
  |  
提交时间:2013/03/25
Whispering-Gallery-Mode (WGM) photonic crystal microcavity is a kind of photonic crystal application and can potentially be used for miniaturized photonic devices
such as thresholdless lasers. In this paper we study the WGM of photonic crystal microcavities focusing on the so called H2 cavities which are formed by removing seven air holes. The WGM in these large-size cavities has some advantages compared with single defect WGM in the view of real device applications. We further add a central air hole in the cavity region to analyze the effect on WGM in the microcavity by finite difference time domain (FDTD) and plane wave expansion (PWE). It is found that the tolerance of WGM is large enough for the fabrication of electrical injection structure. 2008 SPIE.
Laser tunable Toraldo superresolution with a uniform nonlinear pupil filter
期刊论文
OAI收割
appl. optics, 2008, 卷号: 47, 期号: 21, 页码: 3689, 3693
魏劲松
;
Xiao Mufei
收藏
  |  
浏览/下载:1734/228
  |  
提交时间:2009/09/22
Focal spot size
Focusing lens
Laser powering
Laser-induced
Pupil filters
Spot sizes
Super resolutions
High-power VCSELs single devices aid 2-D arrays (EI CONFERENCE)
会议论文
OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Liu Y.
;
Wang L.
;
Wang L.
;
Wang L.
;
Liu Y.
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2013/03/25
The high power bottom-emitting vertical-cavity surface-emitting lasers (VCSELs) and laser arrays emitting at 980 nm are reported. Extensive investigations on size scaling behavior of thermal properties of single devices show limits of attainable output characteristics. The maximum continuous wave (CW) output power at room temperature of single devices with aperture size up to 500 m is as high as 1.95 W. The key characteristics such as maximum output power
wavelength and thermal resistance are discussed. The bottom-emitting arrays of 16 elements and 200 m aperture size of individual elements show output power of CW 1.35 W at room temperature. The far-field angle is below 17 for all driving current
which is very favorable for focusing or collmating optics.