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浏览/检索结果: 共8条，第1-8条 帮助

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Visible Achromatic Metalens Design Based on Artificial Neural Network 期刊论文  OAI收割
ADVANCED OPTICAL MATERIALS, 2021, 页码: 8
作者:  Wang, Feilou;  Geng, Guangzhou;  Wang, Xueqian;  Li, Junjie;  Bai, Yang
  |  收藏  |  浏览/下载：41/0  |  提交时间：2022/06/15
Facile phyto-mediated synthesis of silver nanoparticles using Chinese winter jujube (Ziziphus jujuba Mill. cv. Dongzao) extract and their antibacterial/catalytic properties 期刊论文  OAI收割
IET NANOBIOTECHNOLOGY, 2017, 卷号: 11, 期号: 8, 页码: 973-980
作者:  Liu, Jing-Fu;  Yuan, Chun-Gang;  Huo, Can;  Gui, Bing;  Chen, Yong-Sheng
  |  收藏  |  浏览/下载：37/0  |  提交时间：2018/07/26
Silver  Nanoparticles  Nanofabrication  Antibacterial Activity  Biomedical Materials  Nanobiotechnology  Scanning Electron Microscopy  X-ray Diffraction  Transmission Electron Microscopy  Ultraviolet Spectra  Visible Spectra  X-ray Chemical Analysis  Fourier Transform Infrared Spectra  Catalysis  Wavelength 446 Nm  Temperature 293 k To 298 k  Ag  Escherichia Coli  Staphylococcus Aureus  Biomolecules  Catalytic Activity  Metal Ions  Colloidal Solution  Ftir Spectra  Uv-vis Absorbance  Tem  Sem  Xrd  Fourier Transform Infrared Spectroscopy  Energy-dispersive X-ray Spectroscopy  Scanning Electron Microscopy  X-ray Diffraction  Selected Area Electron Diffraction  Transmission Electron Microscopy  Atomic Force Microscopy  Uv-visible Spectroscopy  Catalytic Properties  Antibacterial Properties  Chinese Winter Jujube Extract  Silver Nanoparticles  Facile Phyto-mediated Synthesis  
SnS nanostructures prepared by simple film technique: Catalyst-free vacuum thermal evaporation 期刊论文  OAI收割
Micro and Nano Letters, 2014, 卷号: 9, 期号: 1, 页码: 34-36
作者:  Li, Jin;  Wang, Shengfeng;  Jian, Jikang;  Sun, Yanfei;  Xu, Jinbao
收藏  |  浏览/下载：28/0  |  提交时间：2014/11/11
In-situ plasmon-driven chemical reactions revealed by high vacuum tip-enhanced Raman spectroscopy 期刊论文  OAI收割
SCIENTIFIC REPORTS, 2012, 卷号: 2
Sun, MT; Zhang, ZL; Zheng, HR; Xu, HX
收藏  |  浏览/下载：18/0  |  提交时间：2013/09/18
Analysis of measuring errors for the visible light phase-shifting point diffraction interferometer (EI CONFERENCE) 会议论文  OAI收割
2010 OSA-IEEE-COS Advances in Optoelectronics and Micro/Nano-Optics, AOM 2010, December 3, 2010 - December 6, 2010, Guangzhou, China
作者:  Zhang Y.
收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25
In order to improve the measuring accuracy of the visible light phase-shifting point diffraction interferometer (PS/PDI) for the extreme ultraviolet lithography (EUVL) aspheric mirrors  the main measuring errors will be discussed in this paper. At first  the elementary configuration and measuring principle of the visible light phase-shifting point diffraction interferometer are introduced briefly  then the different errors which are possible to affect the measuring result are summed up  the errors include PZT phase-shifting error  detector nonlinearity error  detector quantization error  wavelength instability error and intensity instability error of the laser source  vibration error  air refractivity instability error and so on. Through detailed analysis and simulation  the magnitude of these errors can be obtained. By analysing the reasons which cause these errors and the relationship between these errors and interferometer configuration parameters  some methods are put forward to avoid or restrain these errors accordingly.  
The calibration of faint simulation star magnitude based on single photon count technique (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications, June 17, 2009 - June 19, 2009, Beijing, China
作者:  Xu S.-Y.;  Guo J.;  Guo J.
收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25
A calibration method of faint star magnitude of the star scene simulation device is proposed in this paper. In the research of simulation star magnitude  luminometers and CCD devices are the general calibration devices which are used to measure the illumination intensity and calibrate its magnitude. But if the simulation magnitude is only sixth magnitude  its illumination intensity is only 1.010-8 Lux. This illumination intensity level is the lowest illumination intensity that the commercial luminometer can detect. Hence the simulation star magnitude lower than six magnitude cannot be calibrated by luminoters. Likewise CCD devices also need an additive cooler in this case. When the single photon characteristic is presented due to the low luminosity of simulating light sources  the simulation star magnitude can be calibrated by detecting its photon flux of radiation with the method of single photon count. In this paper the detection principle of single photon based on a compact designed PMT detecting of the radiation level of simulation star magnitude is advanced. Especially a spectrum match method is proved theoretically to be an effective means for selecting PMT photosensitive type. In the case of the detection object of the simulation star in visible wavelength  a analysis indicates that the material of tri-alkali cathode materials its best choice after being compared the Signal-to-Noise of photon detector of several PMT photosensitive materials based on the different spectrum match ratio of different object light sources and different cathode materials. An experiment is employed to show the relationship of control voltage of PMT and its dark counter  the relationship of the environment temperature of PMT and its dark counter  which proves its only decades of CPS at room temperature. The so low dark counter avoids a bulky cooler and is convenient for installing it on the star scene simulation equipment. Finally in the experiment of calibrating the simulation star magnitudes the ability of its calibration is confirmed to reaches up to 12m  meanwhile its calibration error is within 0.2m. 2009 SPIE.  
Resolution performance of extreme ultraviolet telescope (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  Yang L.;  Chen B.;  Chen B.;  Liang J.-Q.;  Ni Q.-L.
收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25
Extreme Ultraviolet Telescope (EUT) will image solar corona in four EUV narrow bandpasses defined by multilayered coatings deposited on normal incidence optics. In order to make sure it will get sub-arcsecond angular resolution in the mission we have to test its resolution performance on ground. The EUT is aligned by Zygo interferometer first and a global wavefront error of 0.152 peak to valley is obtained ( = 632.8nm ). Because of the difficulty of angular resolution test for EUT at its operating wavelengths  we test its optical performance at visible and UV band. The method is to place the resolution test-target on the focal plane of collimator and illuminate the target by visible and UV light espectively  then the collimated light will go through EUT and image at focal plane on CCD. By analysis of the images obtained in experiments we conclude that the angular resolution of EUT is 1.22 at visible light ( = 570nm ) which is very close to diffraction limit (1.20) and according to these results we estimate that the operational wavelength resolution is better than 0.32  meets design requirements. While for UV light  the angular resolution is 1.53 that is different from diffraction limit (0.53)  the error comes mainly from large pixel of EUV camera. 2009 SPIE.  
Studies on the carbonylation of carbon dioxide under single wavelength visible light irradiation 期刊论文  OAI收割
chemical journal of chinese universities-chinese, 2001, 卷号: 22, 期号: 1, 页码: 75-77
作者:  Zhuang, JQ;  Yin, JM;  Gao, DB;  Zheng, XF;  Zhou, GY
收藏  |  浏览/下载：29/0  |  提交时间：2015/11/10