中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与... [79]
采集方式
OAI收割 [79]
内容类型
会议论文 [79]
发表日期
2013 [2]
2012 [7]
2011 [21]
2010 [13]
2009 [7]
2008 [7]
更多
学科主题
筛选
浏览/检索结果:
共79条,第1-10条
帮助
限定条件
专题:长春光学精密机械与物理研究所
第一署名单位
第一作者单位
通讯作者单位
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
题名升序
题名降序
提交时间升序
提交时间降序
作者升序
作者降序
发表日期升序
发表日期降序
Error analysis of the micro temperature control system (EI CONFERENCE)
会议论文
OAI收割
2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012, September 15, 2012 - September 16, 2012, Guangzhou, China
Han Z.
;
Song K.
收藏
  |  
浏览/下载:42/0
  |  
提交时间:2013/03/25
In order to improve the measurement accuracy of optical detection instruments
temperature control circuits for narrow band-pass filters are given
and the error analysis is applied to temperature control circuits.The principle of a temperature measurement circuit is studied and the method of a driver circuit is described. A variety of influencing factors of temperature control accuracy are discussed. Moreover
for these error factors
improvement measures are given to reduce the nonlinear error. Finally
circuit parameter error is quantified to propose a calculation method for margin of error in a temperature control system. (2013) Trans Tech Publications
Switzerland.
Response spectrum 0.9-2.65 m of In0.82Ga0.18As detectors by two-step growth technique (EI CONFERENCE)
会议论文
OAI收割
2012 International Conference on Material Sciences and Manufacturing Technology, ICMSMT 2012, October 5, 2012 - October 6, 2012, Dalian, China
作者:
Zhang T.
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
InP/In0.82Ga0.18As/InP heterostructure used for infrared detector were grown on (100) S-doped InP substrates using two-step growth technique by low temperature metal-organic chemical vapor deposition. The growth was performed using TMIn
TMGa
AsH3
and PH3 as growth precursors in a horizontal reactor. The substrates on a graphite susceptor were heated by inductively coupling RF power
their temperatures were detected by a thermocouple
and the reactor pressure was kept at 10000 Pa. The growth structure of detector included In0.82Ga0.18As buffer with the thickness of 100 nm
In0.82Ga0.18As absorption layer with the thickness of 2.8 m
and the InP cap with the thickness of 0.8 m. The planar type of p-i-n detector was fabricated by Zn diffusion. The properties of In0.82Ga0.18As detector were studied
the curves of the I-V characteristics
the range of response spectrum
and the detectivity (D*) were obtained. (2013) Trans Tech Publications
Switzerland.
Immersed nanospheres super-lithography for the fabrication of sub-70nm nanoholes with period below 700nm (EI CONFERENCE)
会议论文
OAI收割
2012 12th IEEE International Conference on Nanotechnology, NANO 2012, August 20, 2012 - August 23, 2012, Birmingham, United kingdom
作者:
收藏
  |  
浏览/下载:129/0
  |  
提交时间:2013/03/25
A maskless nano-lithography method by using polystyrene spheres (PSs) self-assembled on silver slab (NSSL) was proposed in [optics express
Vol. 16
No. 19 (2008) 14397]. Following that
to break the limitations in resolution and PSs period of NSSL method
in this paper
we present PSs immersed super-resolution lithography (NSISL) technology by embedding the PSs into appropriate material to improve the efficiency of the surface plasmon excitation. The energy modulating mechanism and the rules of the resolution affected by silver slab were studied by calculating and analysing the energy distribution. The curve of the lithography resolution versus the silver thickness was presented. In order to verify this method
contrast analysis was carried out with NSSL. The results show that the lithography resolution is improved efficiently. Taking a specific configuration with PS diameter of 600nm as an example
the resolution was improved to 54nm from 190nm with Ag thickness of 25nm. Based on the calculation results
we carried out the experiments. Nano holes with dimension of 75nm and period of 600nm were obtained. 2012 IEEE.
Parameter optimization of passive dynamic walking biped with knees (EI CONFERENCE)
会议论文
OAI收割
2012 2nd International Conference on Materials Science and Information Technology, MSIT 2012, August 24, 2012 - August 26, 2012, Xi'an, Shaan, China
作者:
收藏
  |  
浏览/下载:13/0
  |  
提交时间:2013/03/25
A method to find the optimized parameter values of passive dynamic walking biped is presented. The effects of biped physical parameters on the stability property of passive gaits are studied by simulation experiments. The chosen parameters include the mass distribution
length of leg and slope angle. The stability property of passive walking limit cycles is used as criterion of optimization calculation
including the orbital stability described by eigen-values of linearized Poincare map and the global property described by size of attraction region. The simulation results show how the stability of limit cycle varies when physical parameters of the passive biped change. The work is useful to explore the inherent property of passive dynamic walking and can be used as an important instruction in the mechanical design of biped robots based on principle of passive dynamic walking. (2012) Trans Tech Publications
Switzerland.
Numerical simulations for adaptive optics system (EI CONFERENCE)
会议论文
OAI收割
31st Chinese Control Conference, CCC 2012, July 25, 2012 - July 27, 2012, Hefei, China
作者:
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2013/03/25
The simulation methods for the adaptive optics (AO) system are studied. Based on the global structure of the AO system
the key principles for each module are first discussed systematically
including the wave propagation principles
wave-front representation
coordinates transformation between the coordinates considered
wave-front reconstruction algorithm and DM principles. The purpose of these discussions is to establish the theoretical foundations for the numerical simulations of the AO system. Then the simulation steps are described in detail and a series of numerical simulation results are given which validate the effectiveness of our simulation work. 2012 Chinese Assoc of Automati.
Optimization analysis for radial support by finite elements method (EI CONFERENCE)
会议论文
OAI收割
2012 International Conference on Intelligent System and Applied Material, GSAM 2012, January 13, 2012 - January 15, 2012, Taiyuan, Shanxi, China
作者:
Wang Y.
;
Wang Y.
;
Wang Y.
;
Li C.
;
Wang Y.
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2013/03/25
Primary mirror' surface figure is affected by supporting structure obviously. Especially for large-aperture telescope
the surface figure is significant because of primary mirror' self-weight. For the requirement of the usage
it's necessary to minimize the surface figure from self-weight by reasonable supporting scheme. The text optimized support point and force of radial support to minimize the surface figure by finite-element software. At the same time
it studied the relationship between support point and counterweight to reduce the weight of support structure. At last
it gave the optimal solution. (2012) Trans Tech Publications.
Experimental study on formability of bulk metallic glass as mold for microstructure replication (EI CONFERENCE)
会议论文
OAI收割
作者:
Liu J.
;
Lin J.
;
Huang Y.
;
Liu J.
;
Liu J.
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2013/03/25
La62Al14Cu12Ni12BMG is introduced as a substitute for silicon which was widely used as mold material for nanofabrication. For the purpose of precise microstructure replication and complete filling
effects of various imprint parameters
including imprint temperature
imprint time and compression load
on formability of La 62Al14Cu12Ni12BMG are studied and discussed. Scanning electron microscope images and results of thermal analysis are used to characterize the filling effect of La62Al 14Cu12Ni12BMG. In particular
correlations between time and thermodynamic properties are presented. Despite of its high viscosity at crystallization temperature and its narrow supercooled liquid region
La62Al14Cu12Ni12BMG is proved to be a durable and promising material which can precisely replicate the patterns of silicon mold and then transfer its own patterns on Ce 69Al10Cu20Co1BMG and PMMA. 2012 Elsevier B.V. All rights reserved.
A composite hardness stamp in 184 PDMS for nanostructures transfer in high fidelity (EI CONFERENCE)
会议论文
OAI收割
2012 12th IEEE International Conference on Nanotechnology, NANO 2012, August 20, 2012 - August 23, 2012, Birmingham, United kingdom
作者:
Du J.
;
Shi L.
;
Li S.
收藏
  |  
浏览/下载:13/0
  |  
提交时间:2013/03/25
To improve the fidelity of nanostructures in transfer process
a composite stamp with reasonable hardness distribution in 184 PDMS used to nanoimprint was studied. The stamp is composed of a stiff 184 PDMS structured layer and a soft 184 PDMS supporter layer. We studied the relationship between the hardness of the 184 PDMS and the proportion of each component in 184 PDMS. The appropriate components proportions of prepolymer and curing agent corresponding to the different region of the composite stamp were presented. The fabrication method of the stamp is also presented. Corresponding experiments were carried out by using this stamp. Kinds of nanostructures were transferred in one inch diameter area with good fidelity. The feature sizes of the structures were less than 100 nm. 2012 IEEE.
Influence of sensitizer concentration on the upconversion luminescence of NaYF4: Yb3+, Er3+ nanoparticles (EI CONFERENCE)
会议论文
OAI收割
2012 2nd International Conference on Machinery, Materials Science and Engineering Applications, MMSE 2012, June 16, 2012 - June 17, 2012, Wuhan, China
作者:
Zhao J.
;
Zhao Y.
;
Zhao Y.
;
Zhao Y.
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2013/03/25
A series of NaYF4: Yb3+
Er3+ nanoparticles with different doping concentration were successfully prepared by the combination of coprecipitation and hydrothermal methods using sodium citrate as chelator. Upconversion luminescence can be observed in all of the samples at room temperature. Fixed the Er3+ concentration with 1 mol% unchanged
the effect of the Yb3+ concentration on the upconversion luminescence of NaYF4: Yb3+
Er3+ samples were studied when the doped Yb3+ concentrations were 0 mol%
1 mol%
2 mol%
5 mol%
10 mol% and 20 mol%
respectively. As increasing the Yb 3+ concentration
the total intensity of the upconversion luminescence of the samples is increasing while the ratio of red to green emission increases firstly and then decreases. The maximum ratio value is 22.1 when the Yb3+ concentration is 10 mol%. It is found that the cross relaxation and cooperative sensitization effect are the reasons for the phenomenon above. (2012) Trans Tech Publications.
Design and optimization of supporting structure for scanning mirror in aviation remote sensor (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者:
Yang H.
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2013/03/25
An optical supporting structure is studied to improve its structure stiffness and reduce the rotate error to meet the requirement of aviation remote sensor. A formula to calculate fundamental frequency is proposed using Rayleigh-Ritz method
and a method of is analyzed. By means of OPTISTRUCT software
the maximum fundamental frequency is converted to object function
the deformation under the gravity and the mass are assigned to state variable
wall thicknesses of the structure are converted to design variables. The analysis and test results indicate that the fundamental frequency of designed optical supporting structure has been improved 37.2 Hz from 96.9 Hz
which guarantee the reliability of the sweep mechanism
and the rotate error is 4.89
which is satisfied for the rotate accuracy in plunge angle. The method of optimization has a certain instructional significance for the design of supporting structures in aviation remote sensor. 2011 IEEE.