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Study of Mass Distribution of Carbon Cluster Anions by a Laser Vaporization/Pulsed Molecular Beam Method

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Chinese Journal of Lasers 1999年第5期B8卷 460-463页

作者： ZHANG Shengjia NI Guoquan ZHAI Huajin LIU Bingchen zhou rufang(National Huaqiao University, Quanzhou, 362011, China Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics,Chinese Anademy of Sciences, Shanghai 201800, China) National Huaqiao University Quanzhou362011China Laboratory for Quantum Optics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China

By a laser vaporization/pulsed molecular beam method, the carbon anion clusters C(n=1 to 45) are produced and analyzed. An evident odd-even abundance alternation pattern is observed, with the even-numered C (n=8, 10, 14, 16, 18, 20, 22, 24, 26,28 and 30) standing out. It can also be observed that the peaks at n=5 and n=13 are prominent. Compared with the results obtained by other authors, a discussion concerning cluster structures is made

关键词： carbon cluster laser vuporizations mass spectra

富氧混合团簇Al_5O_3,Al_7O_4,Al_9O_7的特殊稳定性及其形成机理

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中国激光 1999年第7期26卷 619-621页

作者：翟华金倪国权周汝枋王育竹中国科学院上海光机所量子光学开放研究实验室

报道铝－氧混合团簇的光电离质谱，给出支持富氧混合团簇Ａｌ５Ｏ３，Ａｌ７Ｏ４，Ａｌ９Ｏ７形成的融合机理的直接实验证据。

关键词：光电离质谱激光蒸发脉冲分子束富氧混合团簇

中性掺杂铝团簇在特殊源环境中的产生及其光电离质谱

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中国激光 1998年第8期25卷 722-726页

作者：翟华金倪国权周汝枋王育竹中国科学院上海光机所量子光学开放研究实验室上海201800

报道集 Aln(n =7～ 14) ,Aln Cm(m =1,2 ) ,Aln(H2 O) m(m =1,2 )和 Aln Om(m =1,2 ,… ,7)诸系列于一谱的中性铝团簇和中性掺杂铝团簇光电离质谱 ,研究了各掺杂系列的尺寸特性及其随杂质组份相对含量的演变。

关键词：掺杂铝团簇光电离质谱激光蒸发脉冲分子束

RADIOPROTECTIVE EFFECT OF ROSE SUNDROPS ON X-IRRADIATED MICE

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Chinese Science Bulletin 1982年第9期27卷 1016-1018页

作者：欧阳淹沈如芳周彦钢 Department of Radiomedicine Zhejiang Institute of Experimental Medicine and Hygiene Hangzhou Department of Radiomedicine Zhejiang Institute of Experimental Medicine and Hygiene Hangzhoutudies on the radioprotective agents are of considerable significance both in clinical and experimental medicine. Most agents so far discovered are synthetic compounds and only a few are extracted from medicinal herbs. Some of these radioprotectants give effect on experimental animals but they seem not to have much practical value tion of the decoction from 5 mg Rose sundrops is a perennial wild herb which has never been used as a medicine. The results obtained by preliminary experiments show that Rose sundrops can be used as a radioprotectant. One hour after intraperitoneal injec-

Studies on the radioprotective agents are of considerable significance both in clinical and experimental medicine. Most agents so far discovered are synthetic compounds and only a few are extracted from medicinal herbs. Some of these radioprotectants give effect on experimental animals, but they seem not to have much practical value tion of the decoction from 5 mg Rose sundrops is a perennial wild herb which has never been used as a medicine. The results obtained by preliminary experiments show that Rose sundrops can be used as a radioprotectant. One hour after intraperitoneal injec-

关键词： decoction medicinal perennial preliminary ROSE never distilled weighing irradiation 卫协

DEFLECTION OF SODIUM ATOMIC BEAM BY RESONANCE LIGHT PRESSURE OF MULTI-LASER-BEAM

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中国科学A辑(英文版) 1984年第8期 881-888页

作者：王育竹周汝枋周志尧蔡惟泉倪国权周善钰王长生郑卫军 Shanghai Institute of Optics and Fine Mechanics Academia Sinica Academia Sinica

In this paper we report an experimental study on the deflection of a sodium atomic beamby the resonance light pressure of a multi-laser-beam. We have used the multi-laser-beam tointeract with an atomic beam in order to increase the amount of deflection and to reduce con-siderably the need for laser power. A deflection angle of 1.0×10-2 rad and the corresponding displacement of 0.72 cm wereobtained. However, only one dye laser was used to illuminate an atomic beam. A method of laser-induced fluorescence of an atomic beam was employed to probe thedeflection of the atomic beam.

关键词： deflection MULTI mirrors LASER BEAM latter spots instead diameters scattered

Pulsed Gas Jet for Large Size Atomic Cluster Production

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Chinese Journal of Lasers 1999年第6期 3-5页

作者： LEI Anle 1,2 NI Guoquan 1 zhou rufang 1 ZHAI Huajin 1 LIU Bincheng 1 ZHANG Shengjia 1 XU Zhizhan 1 ( 1 Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China 2 Institute of

A pulsed gas jet of large size noble gas atomic clusters as targets for high intensity femtosecond laser pulses is reported. The jet can work for gas stagnation pressure in excess of 40 atmospheres and with a repetition rate of 10 Hz to fit 10 Hz table top terrawatt femtosecond Ti∶Sapphire laser. The scaling law indicates that the monomer argon clusters produced in the jet can be as large as 22,000 atoms/cluster at room temperature. Preliminary experiments for argon ionic kinetic energy spectrum indicated that the argon clusters are produced in the jet.

关键词： laser cluster interaction large size cluster generation pulsed gas jet

Microstructure and Wear/corrosion Resistance of Stainless Steel Laser-alloyed with Mn+W_(2)C, Mn+NiWC and Mn+SiC

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 283-294页

作者： zhou Rui DIAO Xiaogang SUN Yixin School of Metallurgical Engineering Jiangsu University of Science and TechnologyZhangjiagang 215600China CITIC Heavy Cast Iron Industry Co. Ltd.Luoyang 417039China

In-situ formed high Mn steel coating reinforced by carbides was formed by laser surface alloying(LSA).Laser alloyed layers on 1Cr18Ni9Ti steel with Mn+W_(2)C(specimen A),Mn+NiWC(specimen B)and Mn+SiC(specimen C)powders were fabricated to improve the wear and corrosion behavior of 1Cr18Ni9Ti steel blades in high speed *** evolution,phases,element distribution,microhardness,wear and corrosion behavior of the laser alloyed layers were *** indicated that high Mn steel matrix composites with undissolved W_(2)C,WC and other in-situ formed carbides were formed by LSA with Mn+W_(2)C and Mn+NiWC while SiC totally dissolved into the high Mn matrix when adding Mn+*** as the binding phase in Ni-WC powder decreased the crack sensitivity of the alloyed layer as compared with the addition of W_(2)C *** improvement in average microhardness was achieved in the matrix in specimen A,B and C,with the value of 615,602 and 277 HV_(0.5),while that of the substrate was 212 HV_(0.5).The increase of microhardness,wear and corrosion resistance is highly corelated to microstructure,formed phases,type and content of carbides,micro-hardness and toughness of the alloyed layers.

关键词： laser surface alloying stainless steel carbide type microstructure wear and corrosion resistance

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一种用于激光蒸发产生团簇束的高速脉冲气阀

中国激光 1994年第9期21卷 750-752页

作者：倪国权周汝枋戴明许达民中国科学院上海光机所中国科学院量子光学联合开放实验室

报道一种双线圈弹簧结构脉冲气阀的成功研制。产生的气体脉冲宽度（ＦＷＨＭ）小于２００μｓ，在不加Ｓｋｉｍｍｅｒ时气体脉冲峰值强度为２×１０２２ｍｏｌｅｃｕｌｅｓ／ｓｒ·ｓ。气阀的主要性能与国外用激光蒸发／分子束技术产生... 详细信息

报道一种双线圈弹簧结构脉冲气阀的成功研制。产生的气体脉冲宽度（ＦＷＨＭ）小于２００μｓ，在不加Ｓｋｉｍｍｅｒ时气体脉冲峰值强度为２×１０２２ｍｏｌｅｃｕｌｅｓ／ｓｒ·ｓ。气阀的主要性能与国外用激光蒸发／分子束技术产生簇束的有代表性的实验室所用的同类气阀相比并不逊色。

关键词：脉冲气阀激光蒸发分子束团簇

Distributed fiber optic sensing system for vibration monitoring of 3D printed bridges

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Optoelectronics Letters 2025年第1期21卷 28-34页

作者： ZHAO Shuai zhou Ran LUO Mingming LIU Jianfei LIU Xiongfei zhou Tao School of Electronic Information Engineering Hebei University of Technology Tianjin Key Laboratory of Electronic Materials and Devices School of Civil Engineering and Transportation Hebei University of Technology Tianjin Jinhang Institute of Technical Physics

The fiber optic sensing technology provides data support in structural health monitoring of the macro facilities, including design, construction, and maintenance of bridges, tunnels, ports and other infrastructures. In this paper, a distributed vibration sensing system is proved to be responsive to a single touch over a 1.8-m-long equivalent fiber segment, covering a vibration frequency from 5 Hz to 25 kHz. The sensing fiber was arranged as an S type layout on the bridge to recognize the standing state, windblown disturbance, and walking vibration. Moreover, the knocking and climbing events are recognized fiber laying spinning lines and hanging on the fences, respectively. The demonstration shows an accurate positioning and sensitive vibration monitoring applied on the automated three-dimensional(3D) printed bridge, which is applicable to all kinds of 3D printed facilities as intelligent sensory neuro-networks.

关键词： Spinning (fibers)