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	Daily monitoring of Effective Green Area Index and Vegetation Chlorophyll Content from continuous acquisitions of a multi-band spectrometer over winter wheat 期刊论文 OAI收割 REMOTE SENSING OF ENVIRONMENT, 2024, 卷号: 300, 页码: 17 作者: Li, Wenjuan; Weiss, Marie; Jay, Sylvain; Wei, Shanshan; Zhao, Na \| 收藏 \| 浏览/下载：38/0 \| 提交时间：2024/03/10 Green Area Index (GAI) Leaf chlorophyll content (LCC) Canopy chlorophyll content (CCC) Daily measurements Wheat Near-surface system
	Linking moisture and near-surface wind with winter temperature to reveal the Holocene climate evolution in arid Xinjiang region of China 期刊论文 OAI收割 GEOSCIENCE FRONTIERS, 2022, 卷号: 13, 期号: 6, 页码: 14 作者: Gao, Fuyuan; Yang, Junhuai; Xia, Dunsheng; Lu, Hao; Wang, Shuyuan \| 收藏 \| 浏览/下载：51/0 \| 提交时间：2023/03/31 Holocene climate change Moisture Temperature Near-surface wind strength Siberian high-pressure system Mid-latitude Westerlies
	Analysis of laser jamming to satellite-based detector (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China 作者: Guo L.-H.; Guo R.-H.; Wang S.-W. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 The reconnaissance satellite communication satellite and navigation satellite used in the military applications have played more and more important role in the advanced technique wars and already become the significant support and aid system for military actions. With the development of all kinds of satellites anti-satellite laser weapons emerge as the times require. The experiments and analyses of laser disturbing CCD (charge coupled detector) in near ground have been studied by many research groups but their results are not suitable to the case that using laser disturbs the satellite-based detector. Because the distance between the satellite-based detector and the ground is very large it is difficult to damage it directly. However the optical receive system of satellite detector has large optical gain so laser disturbing satellite detector is possible. In order to determine its feasibility the theoretical analyses and experimental study are carried out in the paper. Firstly the influence factors of laser disturbing satellite detector are analyzed in detail which including laser power density on the surface of the detector after long distance transmission and laser power density threshold for disturbing etc. These factors are not only induced by the satellite orbit but dependence on the following parameters: laser average power in the ground laser beam quality tracing and aiming precision and atmospheric transmission. A calculation model is developed by considering all factors which then the power density entering into the detector can be calculated. Secondly the laser disturbing experiment is performed by using LD (laser diode) with the wavelength 808 nm disturbing CCD 5 kilometer away which the disturbing threshold value is obtained as 3.5510-4mW/cm2 that coincides with other researcher's results. Finally using the theoretical model the energy density of laser on the photosensitive surface of MSTI-3 satellite detector is estimated as about 100mW/cm2 which is largely exceed the disturbing threshold and therefore verify the feasibility of using this kind of laser disturbing the satellite-based detector. According to the results. using the similar laser power density absolutely saturate the requirements to laser disturbing satellite-based detector. If considering the peak power of pulsed laser even decrease laser average power it is also possible to damage the detector. This result will provide the reliable evidences to evaluate the effect of laser disturbing satellite-based detector. 2009 SPIE.
	High power diode pumped Vertical External-cavity Surface-emitting Lasers (VECSELS) (EI CONFERENCE) 会议论文 OAI收割 IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics, September 18, 2006 - September 22, 2006, Shanghai, China 作者: Qin L. 收藏 \| 浏览/下载：16/0 \| 提交时间：2013/03/25 We describe the theoretical analysis and calculations of the 980nm high-power diode-pumped vertical external cavity surface emitting laser (VECSEL). The VECSEL with active region of InGaAs/GaAsP/AlGaAs system can be operated near 500mw in a single transverse mode. 2006 IEEE.
	980nm high power Vertical External-cavity Surface-emitting Semiconductor Lasers (VECSEL) (EI CONFERENCE) 会议论文 OAI收割 Optoelectronic Materials and Devices for Optical Communications, November 7, 2005 - November 10, 2005, Shanghai, China 作者: Ning Y.-Q.; Wang L.-J.; Wang L.-J.; Qin L. 收藏 \| 浏览/下载：14/0 \| 提交时间：2013/03/25 We describe the design fabrication and calculation characteristics of the 980nm high-power diode-pumped vertical external-cavity surface-emitting laser(VECSEL).From our calculation the VECSEL with active region of InGaAs/GaAsP/AlGaAs system can operate near 1w in a single transverse mode.