机构

• 物理研究所 [1]
• 国家空间科学中心 [1]
• 长春光学精密机械与物... [1]
• 地球环境研究所 [1]
• 紫金山天文台 [1]

采集方式

• OAI收割 [5]

内容类型

• 期刊论文 [3]
• 会议论文 [2]

发表日期

• 2017 [1]
• 2013 [1]
• 2009 [2]
• 1999 [1]

学科主题

• Astronomy ... [1]
• Geology [1]

筛选

浏览/检索结果: 共5条，第1-5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 Shaped Space-borne Waveguide Slots Array Antenna 会议论文  OAI收割 Fort Worth, TX, JUL 23-28, 2017 作者:  Wang Hongjian   |  收藏  |  浏览/下载：22/0  |  提交时间：2018/05/04 Space-borne  High Gain  Shaped Pattern  Near Field   Near-field optical observations of surface plasmon wave interference at subwavelength hole arrays perforated in Au film 期刊论文  OAI收割 CHINESE PHYSICS B, 2013, 卷号: 22, 期号: 11 Li, JY; Gan, L; Li, ZY 收藏  |  浏览/下载：26/0  |  提交时间：2014/01/16 surface plasmon waves  near-field pattern  oscillation   Near-field beam pattern measurement of qualification model of ALMA band 8 (385-500 GHz) cartridge receiver 期刊论文  OAI收割 EXPERIMENTAL ASTRONOMY, 2009, 卷号: 24, 期号: 1-3, 页码: 89-107 作者:  Naruse, Masato;  Ito, Tetsuya;  Sekimoto, Yutaro;  Toba, Hiroyuki;  Satou, Naohisa 收藏  |  浏览/下载：18/0  |  提交时间：2011/12/08 Near-field beam pattern measurements  SIS receiver  Physical optics simulation   Rigorous vector analysis of diffractive microlens by using of finitedifference time-domain method (EI CONFERENCE) 会议论文  OAI收割 2009 International Conference on Optical Instruments and Technology, OIT 2009, October 19, 2009 - October 22, 2009, Shanghai, China 作者:  Liu Y.;  Liu H.;  Liu H.;  Liu H.;  Liu Y. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 We use finite difference time domain (FDFD) method as rigorous vector analysis model to simulate the focusing process of diffractive microlens (DML). Differing with most analysis model which the near field distributions are calculated by FDTD and then far field are obtained by using of propagation method  we obtain the fields in whole computational space by using of FDTD only. The advantages are that all the results are vector based and the computational time is saved greatly. In this paper  we present two methods to obtain wave amplitude  one is comparison method  and the other is integral method. Depending on wave amplitude in the whole computational space  one can conveniently obtain distributions of electric field intensity and calculate the time-average Poynting vector. We also present the formulation for calculating diffractive efficiency of DML based on time-average Poynting vector which denotes energy flow. As demonstration  a DML is analyzed by using of these algorithms. The time depended graphic results of FDTD show the process of wave propagation. The distribution of electric field intensity illustrates the focusing of the normal incident light. The focus pattern in the focal plane is also show. The diffractive efficiency of the DML is calculated by using of the energy flow method in this paper. The results show the high accuracy and efficiency of the model. 2009 SPIE.   Formation mechanism and development pattern of aeolian sand landform in Yarlung Zangbo River valley 期刊论文  OAI收割 SCIENCE IN CHINA SERIES D-EARTH SCIENCES, 1999, 卷号: 42, 期号: 3, 页码: 272-284 作者:  Li, S;  Dong, GR;  Shen, JY;  Yang, P;  Liu, XW   |  收藏  |  浏览/下载：39/0  |  提交时间：2020/05/28 Yarlung Zangbo River valley  aeolian sand landform  near-surface flow field  positive-reverse development processes  evolutional pattern