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浏览/检索结果: 共4条，第1-4条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Experiments of second harmonic generation output in pulsed TEA CO 2 laser (EI CONFERENCE) 会议论文 High-Power Lasers and Applications V, October 18, 2010 - October 19, 2010, Beijing, China Guo R.; Li D. 收藏  |  浏览/下载：40/0  |  提交时间：2013/03/25 It is always the hot subject to realize the output of high-power laser in the range of 3-5m wavelength. This rang of wave band has greatly important applications in military because it located in the atmosphere window. Generally there are two ways to obtain this range of laser wavelength. One way is through optical parameter oscillation (OPO) from shorter laser wavelength and the other is through second harmonic generation (SHG) from longer laser wavelength. Firstly  the comparison between tow nonlinear crystals ZnGeP2 and AgGaSe2 is conducted for their nonlinear coefficient and damaging threshold in theory. The theoretical results show that the crystal AgGaSe 2 is more suitable for the SHG of pulsed TEA CO2 laser. When using pulsed TEA CO2 laser with wavelength of 9.3m to pumping AgGaSe2 SHG crystal  the wavelength of 4.65m is obtained. In the condition of repetition rate 100Hz  the upmost output power of single pulse is up to level of 1W  which corresponding efficiency of SHG is about 6%. The experimental results show that the polarization of laser beam has greatly influence on the SHG output of the crystal. Under the radiation of 3MW/cm 2 from fundamental wave and the right position for maximal SHG output in the crystal  when polarization of laser beam rotates 4.5  the SHG output of energy decrease about 30%. The research of this paper will make a foundation for further development of mid-infrared laser. 2010 Copyright SPIE - The International Society for Optical Engineering.   Heat treatment and its effects on the optical quality of AgGaSe2 single crystals 期刊论文 Materials Chemistry and Physics, 1997, 卷号: 50, 期号: 1, 页码: 94-97 S. F. Zhu; B. J. Zhao; J. Liu; Z. H. Li; W. T. Li 收藏  |  浏览/下载：10/0  |  提交时间：2012/04/14 heat treatment  AgGaSe2 single crystals  annealing  optical quality  growth   Synthesis of high-quality AgGaSe2 polycrystalline material by the melt temperature oscillation method 期刊论文 Materials Chemistry and Physics, 1996, 卷号: 46, 期号: 1, 页码: 100-102 S. F. Zhu; B. J. Zhao; J. Liu; H. G. Jiang; Z. H. Li; W. T. Li 收藏  |  浏览/下载：11/0  |  提交时间：2012/04/14 silver gallium diselenide  polycrystal synthesis  melt temperature  oscillation  infrared applications  optical-quality  crystals  growth   Crystal growth and differential thermal analysis of AgGaSe2 期刊论文 Crystal Research and Technology, 1995, 卷号: 30, 期号: 8, 页码: 1165-1168 S. F. Zhu; J. Liu; B. J. Zhao; H. A. Jiang; Z. H. Li 收藏  |  浏览/下载：11/0  |  提交时间：2012/04/14 infrared applications  optical-quality