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长春光学精密机械与物... [3]
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会议论文 [3]
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2012 [1]
2011 [1]
2010 [1]
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内容类型:会议论文
专题:长春光学精密机械与物理研究所
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Nanoscale patterns made by using a 13.5-nm Schwarzschild objective and a laser produced plasma source (EI CONFERENCE)
会议论文
Optical Micro- and Nanometrology IV, April 16, 2012 - April 18, 2012, Brussels, Belgium
Wang Z.
;
Wang X.
;
Mu B.
;
Bai Y.
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浏览/下载:31/0
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提交时间:2013/03/25
Lithium fluoride (LiF) crystal is a very promising candidate as nanometer resolution EUV and soft X-ray detector. Compared with other EUV and soft X-ray detectors
charge coupled device and photographic films
LiF crystal has high resolution
large field of view and wide dynamic range. In this paper
using LiF crystal as EUV detector and a Schwarzschild objective (SO) working at 13.5nm as projection optics
mesh images with 4.2 m
1.2 m and 800 nm line width and pinhole patterns with 1.5m diameter are acquired in projection imaging mode and direct writing mode
respectively. Fluorescence intensity profiles of images show that the resolution of mesh image is 900 nm
and the one of pinhole image is 800 nm. In the experiments
a spherical condense mirror based on normal incidence type is used to eliminate the damage and contamination on the masks (mesh and pinhole) caused by the laser plasma
and the energy density is not decreased compared with that the masks are close to the plasma. The development of the SO
the alignment of the objective and the imaging experiments are also reported. 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Designing and development of multi-DSP real-time image processing system based on FPGA (EI CONFERENCE)
会议论文
2011 International Conference on Computer Science and Network Technology, ICCSNT 2011, December 24, 2011 - December 26, 2011, Harbin, China
Wei H.
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浏览/下载:18/0
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提交时间:2013/03/25
To improve the image processing system of resolution capability and reliability
image processing system in a growing number of multi-sensor model. In this mode
the use of the current main stream single DSP + FPGA hardware architecture for image processing algorithms have already unable to meet the operational requirements of real-time. This paper proposed a new hardware architecture that is the three DSPs based on FPGA. With the traditional master-slave architectures is different
three DSP's external interfaces are connected with FPGA and other peripheral interfaces are connected to the FPGA. In the architecture
DSP is in the same position three and FPGA flow control for data management and other function to achieve. This connection has a strong restructuring and expansion
software development and more flexible. 2011 IEEE.
The design of high-speed optical fiber communication system based on PCI bus (EI CONFERENCE)
会议论文
2010 2nd IEEE International Conference on Advanced Management Science, ICAMS 2010, July 9, 2010 - July 11, 2010, Chengdu, China
Liang G.-L.
;
He X.
;
Wei Z.-H.
;
He J.-W.
;
Zhang L.-G.
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浏览/下载:44/0
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提交时间:2013/03/25
In order to increase the transmission distance and reduce noise effectively
a communication system with the optical fiber interface is developed in this paper. In the system
the PCI bus is adopted as the connection bus between the underlying optical fiber transceiver module circuitry and host computer using the WDM driver. The FPGA is the core logic of the whole system
responsible for data transmission and timing logic control. The module structure and the design method of the PCI bus
the principle and the design of optical interface module and the bottom-driven development are described in this paper. The experiment results show that the system has basically meet requirement targets. It can achieve the maximum transfer rate of 40MBps when running in the DMA mode. With long transmission distance
strong antiinterference and high scalability
this system has stable and reliable performance. 2010 IEEE.
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