机构

• 金属研究所 [1]
• 长春光学精密机械与物... [1]
• 上海光学精密机械研究... [1]

采集方式

• OAI收割 [3]

内容类型

• 期刊论文 [2]
• 会议论文 [1]

发表日期

• 2014 [1]
• 2010 [1]
• 2008 [1]

学科主题

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 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 Structure and Electromagnetic Properties of Single-Crystalline Fe3O4 Hollow Nanospheres 期刊论文  OAI收割 Journal of Nanoscience and Nanotechnology, 2014, 卷号: 14, 期号: 6, 页码: 4664-4669 Y. J. Zhang; S. W. Or; Z. D. Zhang 收藏  |  浏览/下载：28/0  |  提交时间：2014/04/18 Dielectric and Magnetic Losses  Electromagnetic Wave Absorption  Fe3O4  Hollow Nanospheres  Reflection Loss  Solvothermal Reduction Method  microwave-absorption properties  core/shell nanorods synthesis  magnetic-properties  nanoparticles  microspheres  nanocapsules  monodisperse  particles  nanotubes  growth   Design of compound Fresnel-R lenses for new high-efficient photovoltaic concentrator (EI CONFERENCE) 会议论文  OAI收割 Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII, August 1, 2010 - August 4, 2010, San Diego, CA, United states 作者:  Liu H.;  Liu H.;  Liu H. 收藏  |  浏览/下载：35/0  |  提交时间：2013/03/25 A new design of compound Fresnel-R concentrator is presented which is composed of two lenses: a primary lens (Fresnel lens) that works by total internal reflection at outer facets but refraction at inner facets  and a secondary lens that works by refraction. In contrast to previous Fresnel lens concentrator  this design increases the acceptance angle  improves the irradiance uniformity on the solar cell  and reduces the aspect ratio significantly. Another outstanding advantage of this concentrator is the fact that it mainly works by performing total internal reflection  reducing chromatic dependence as well as Fresnel losses. An optical efficiency more than 80% can be achieved. Moreover  in order to reduce the influence of manufacture accuracy and to increase the optical efficiency further  the central part of the bottom of the secondary lens which directly adhered to the solar cell is designed as a cone-shaped prism to collect the sunlight that doesn't reach the solar cell. 2010 SPIE.   Polarizing beam splitter of deep-etched triangular-groove fused-silica gratings 期刊论文  OAI收割 opt. lett., 2008, 卷号: 33, 期号: 14, 页码: 1554, 1556 郑将军; 周常河; Feng Jijun; Wang Bo 收藏  |  浏览/下载：850/148  |  提交时间：2009/09/18 1550 nm  Design conditions  Extinction ratio (ER)  Higher diffraction  Highly efficient  Littrow  Optical (PET) (OPET)  Optical society of America (OSA)  Polarized waves  Polarizing-beam splitter (PBS)  Reflection losses  Rigorous coupled-wave analysis (RCWA)  TM polarizations