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High-resolution Fourier lens design (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Gu S.; Liu C.; Jin G.
收藏  |  浏览/下载:15/0  |  提交时间:2013/03/25
Design of high-resolution fourier transform lens (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Zhang L.;  Zhang L.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
With the development of optical information processing  high-resolution Fourier transform lens has often been used in holographic data storage system  spatial filtering and observation of particles. This paper studies the optical design method of high-resolution Fourier transform optical lenses system  which could be used in particles observation and holographic data storage system. According to Fourier transform relation between object and its frequency plane and the theory of geometrical optics  the system with working wavelength 532nm and resolution 3 m was designed based on ZEMAX. A multi-configuration method was adopted to optimize the system's lenses. In the optical system  a diaphragm was placed at the system's spectrum plane and the system demanded a low vacuum to cut down the influences of atmosphere and other particles. The result of finite element analysis indicated that the influences of vacuum pumping to optics spacing and mirror surface shape very minor  and the imaging quality not being affected. This system has many advantages  such as simple structure  good image quality and a high resolution of 3 m. So it has a wide application prospect and can be used both in holographic data storage system and particles observation.  
Research on animal laser varicose treatment in CIOMP, CAS (EI CONFERENCE) 会议论文  OAI收割
Fifth International Conference on Photonics and Imaging in Biology and Medicine, September 1, 2006 - September 3, 2006, Wuhan, China
作者:  
Zhang L.;  Guo J.;  Guo J.;  Li D.;  Zhang L.
收藏  |  浏览/下载:16/0  |  提交时间:2013/03/25
The work on laser varicose treatment carried out in CIOMP  It provides minimal invasion  CAS cooperating with The First Clinical Hospital  often under local anesthesia and intravenous sedation thereby eliminating the need for general anesthesia  Jilin University is summarized. Dozens of animal experiments adopting dog and rabbit samples are made in a long time of several years. Different lasers are used  greatly shortens postoperative recovery term  including long pulse frequency-doubled Nd:YAG(532nm) and semiconductor laser(808nm). Dozens of animal experiments show that laser has good efficacy to occlude the vein vessels. It has precise adjustability and relatively short treatment time only needing outpatient office setting with high cost and effect rate  and it is highly safe with no side effects and no serious complications.  
千赫兹全固态紫外激光器实验研究 学位论文  OAI收割
硕士: 中国科学院上海光学精密机械研究所, 2007
作者:  
戴殊韬
收藏  |  浏览/下载:33/0  |  提交时间:2016/11/28
电光调Q  532nm  355nm  KTP  BBO  
High energy long duration frequency-doubled Nd:YAG laser and application to veins occlusion (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:  
Li D.;  Guo J.;  Guo J.;  Tang Y.;  Zhang L.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
Laser treatment represents an attractive option to other methods of vessel diseases especially varicose veins. A long pulse (30-50ms) 532nm laser (Fig.1) is used in our experiments with the pulse duration matching the thermal relaxation time of the vessels and the green laser matching the absorption spectrum peak of the blood. Laser irradiates nude vein vessels directly or exterior skin to finish operation faster and to acquire the practical data for upper enteron varicose vein treatment in several animal experiments performed in vivo. The 5J-energy pulse allows us to finely occlude rabbit or dog's vein vessels up to 2 mm in diameter when irradiating them off external skin (Fig.2). Blood vessels are occluded at once and later biopsy specimens show the immediate and long-term lasting occlusion effect. While irradiating vessels directly (Fig.3)  the vessels are usually irradiated to perforate  detailed causes are still under investigation. Animal experiments show long pulse green laser therapy is a safe and effective solution to the vein's occlusion  which promises such laser with high energy of each pulse and 30-50 ms duration is an ideal candidate for vessel diseases treatment.  
Color video display technique based on diode-pumped solid state lasers (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 H.;  Wei Z.-L.;  Liu H.;  Liu H.;  Kang Y.-S.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25