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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
半导体研究所 [4]
计算技术研究所 [2]
长春光学精密机械与物... [2]
采集方式
OAI收割 [6]
iSwitch采集 [2]
内容类型
期刊论文 [6]
会议论文 [2]
发表日期
2009 [2]
2006 [2]
1999 [4]
学科主题
半导体材料 [2]
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An index and retrieval framework integrating perceptive features and semantics for multimedia databases
期刊论文
OAI收割
MULTIMEDIA TOOLS AND APPLICATIONS, 2009, 卷号: 42, 期号: 2, 页码: 207-231
作者:
Shi, Zhiping
;
He, Qing
;
Shi, Zhongzhi
  |  
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2019/12/16
CBMR
High-dimensional index
Semantics
Relevance feedback
Three-dimensional angle measurement based on auto-collimation and moire fringe (EI CONFERENCE)
会议论文
OAI收割
2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, November 16, 2008 - November 19, 2008, Beijing, China
Cai S.
;
Liang S.
;
Qiao Y.-F.
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2013/03/25
A method for small three-dimensional (3D) angle measurement based on auto-collimation and moire fringe is proposed and analyzed. A right-angle prism is used as the indicator of angle change. The inclined plane indicates the pitch and yaw angles and roll angle in indicated by the rib which is the intersection of two right-angle sides. Pitch and yaw angles measurement are implemented by auto-collimation based on reticule and roll angle measurement is measured based on moire fringe. Roll angle measurement is separated from pitch and yaw by using two light sources with different frequencies. Any small change of pitch and roll angles will induce the shift of the reticule image after reflecting by inclined plane. And any small roll angle will induce a change in moire fringe width that is generated by scale grating image which is reflected by the prism and index grating. The math model of this method is built up and error analysis is presented. The theoretical calculation results show that the proposed method is feasible and can achieve high accuracy. 2009 SPIE.
Using one-dimensional nonlinear photonic crystal for dynamical addressing optical interconnection (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Li C.
;
Wang W.
;
Wang W.
;
Li C.
;
Li C.
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2013/03/25
Optical interconnection is the key technique of high-speed optical information process and optical communication. A lot of approaches for optical interconnection have been proposed since Goodman in Stanford University firstly proposed the optical interconnection for very large scale integrated circuits technology. A dynamical addressing device for optical interconnection was designed and fabricated in this paper. This optical device is based on one-dimensional nonlinear photonic crystal made on the planar waveguide. The nonlinear materials ZnS and ZnSe
which have large nonlinear refractive index coefficients
were alternately deposited on the waveguide to form one-dimensional photonic crystal. The Bragg condition is changed when the input power of the control light increased due to the nonlinear characters of the materials
thus the reflective angle of the signal light can be changed with the input power change of the control light. In our experiment
when increasing the power density of control light from 0 to 2.60X105W/cm 2
the angle of the signal beam can be changed about 20. The interconnection characteristics were investigated in theory and in experiment. The testing data agree well with theoretical predictions. This kind of devices is promising to use in the all-optical interconnection
optical information processing and optical communication.
Semantics supervised cluster-based index for video databases
期刊论文
OAI收割
IMAGE AND VIDEO RETRIEVAL, PROCEEDINGS, 2006, 卷号: 4071, 页码: 453-462
作者:
Shi, Zhiping
;
Li, Qingyong
;
Shil, Zhiwei
;
Shil, Zhongzhi
  |  
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2019/12/16
high-dimensional index
cluster
video semantics
video database
Two-dimensional ordering of self-assembled inxgal-xas quantum dots grown on gaas(311)b surfaces
期刊论文
iSwitch采集
Journal of crystal growth, 1999, 卷号: 206, 期号: 4, 页码: 279-286
作者:
Xu, HZ
;
Jiang, WH
;
Xu, B
;
Zhou, W
;
Wang, ZG
收藏
  |  
浏览/下载:47/0
  |  
提交时间:2019/05/12
Two-dimensional (2d) ordering
Quantum dot array
Inxga1-xas
Self-assembly
Molecular beam epitaxy
Gaas(311)b
High index
Two-dimensional ordering of self-assembled inxga1-xas quantum dots grown on gaas(311)b surfaces
期刊论文
iSwitch采集
Journal of crystal growth, 1999, 卷号: 205, 期号: 4, 页码: 481-488
作者:
Xu, HZ
;
Jiang, WH
;
Xu, B
;
Zhou, W
;
Wang, ZG
收藏
  |  
浏览/下载:61/0
  |  
提交时间:2019/05/12
Two-dimensional (2d) ordering
Quantum dot array
Inxga1-xas
Self-assembly
Molecular beam epitaxy
Gaas(311)b
High-index
Two-dimensional ordering of self-assembled InxGa1-xAs quantum dots grown on GaAs(311)B surfaces
期刊论文
OAI收割
journal of crystal growth, 1999, 卷号: 205, 期号: 4, 页码: 481-488
作者:
Xu B
收藏
  |  
浏览/下载:70/0
  |  
提交时间:2010/08/12
two-dimensional (2D) ordering
quantum dot array
InxGa1-xAs
self-assembly
molecular beam epitaxy
GaAs(311)B
high-index
CHEMICAL-VAPOR-DEPOSITION
ORGANIZED GROWTH
INAS ISLANDS
GAAS
GAAS(100)
ALIGNMENT
MATRIX
ARRAYS
DISKS
MOLECULAR-BEAM-EPITAXY
Two-dimensional ordering of self-assembled InxGal-xAs quantum dots grown on GaAs(311)B surfaces
期刊论文
OAI收割
journal of crystal growth, 1999, 卷号: 206, 期号: 4, 页码: 279-286
作者:
Xu B
收藏
  |  
浏览/下载:51/0
  |  
提交时间:2010/08/12
two-dimensional (2D) ordering
quantum dot array
InxGa1-xAs
self-assembly
molecular beam epitaxy
GaAs(311)B
high index
CHEMICAL-VAPOR-DEPOSITION
ORGANIZED GROWTH
INAS ISLANDS
GAAS
GAAS(100)
ALIGNMENT
MATRIX
DISKS
MOLECULAR-BEAM-EPITAXY