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	Design of optical elements for imaging the earth's plasmasphere (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Optoelectronic System Design, Manufacturing, and Testings, September 9, 2007 - September 12, 2007, Beijing, China 作者: Chen B.; Chen B.; Wang X.-K. 收藏 \| 浏览/下载：40/0 \| 提交时间：2013/03/25 Studying the distribution of He+ in Earth's plasmasphere by detecting its resonantly-scattered emission at 304A will record the structure and dynamics of the cold plasma in Earth's plasmasphere on a global scale. EUV imaging systems usually utilizes near normal incidence optics including multilayer mirror and filter. In this paper the space condition of the Earth's plasmasphere to confirm the expected performance of mirror and filter for this task were analyzed and some guidelines for the design of the optical elements were introduced. In order to achieve higher response at 304A and reduce 584A radiation for the optical system a new multilayer coating of Mo/Si with UOx (x=2-3) was developed and it is indicated that promising filter material is Al/C with a nickel mesh. In addition we compute the reflectance of multilayer mirror based on optical constants and the transmission of the filter based on atomic scattering factor. The results show the multilayer mirror has high reflectance of 26.27% at 304 Aand low reflectance of 0.60% at 584A. Finally the conversion efficiency of mirror coupled with filter is 6.88% at 304A and 0.01% at 584 A.
	Highly efficient diode side-pumped Nd : YAG ceramic laser with 210W output power 期刊论文 OAI收割 opt. laser technol., 2007, 卷号: 39, 期号: 4, 页码: 705, 709 Lee Sungman; Choi Daewook; Kim Cheol-Jung; 周军收藏 \| 浏览/下载：1916/218 \| 提交时间：2009/09/18 Nd : YAG ceramic laser side-pumped high optical-to-optical conversion efficiency
	LD-Pumped all-solid-stated green laser with high polarization rate and high conversion efficiency (EI CONFERENCE) 会议论文 OAI收割 Optoelectronic Materials and Devices for Optical Communications, November 7, 2005 - November 10, 2005, Shanghai, China Hao E.-J.; Tan H.-M.; Yan C.-L.; Qian L.-S. 收藏 \| 浏览/下载：28/0 \| 提交时间：2013/03/25 A high-power-output and high polarization rate Nd:YVO4/ KTP green laser has been presented. By analyzing the factors which affect the conversion efficiency and polarization rate we used a short folded-cavity resonator the maximum output power of 320 mW is obtained at 532 nm with the LD pumping power of 1 W the optical-to-optical conversion efficiency is 32% and the polarization rate is 550:1.