强激光与粒子束最新文献_第10页

Suppression of higher diffraction orders using quasiperiodic array of rectangular holes with large size tolerance 大尺寸公差矩形孔准周期阵列抑制高阶衍射

强激光与粒子束 Pub Date : 2020-06-24 DOI: 10.11884/HPLPB202032.200117

Wei-Che Lai, Chen Yong, Wang Shao-Yi, Fan Quan-ping, Z. Qiangqiang, Z. Zhong, Wang Zhanshan, Cao Lei-feng

{"title":"Suppression of higher diffraction orders using quasiperiodic array of rectangular holes with large size tolerance","authors":"Wei-Che Lai, Chen Yong, Wang Shao-Yi, Fan Quan-ping, Z. Qiangqiang, Z. Zhong, Wang Zhanshan, Cao Lei-feng","doi":"10.11884/HPLPB202032.200117","DOIUrl":"https://doi.org/10.11884/HPLPB202032.200117","url":null,"abstract":"Advances in basic and applied research of conventional grating have been attracting much attention from optical engineering community. However, the higher orders diffraction contamination degrades the spectral purity obtained by conventional gratings seriously. Many designs of single-order or quasi-single-order gratings have been proposed to suppress higher-order diffraction contributions, however, their inhibitive effects on the higher order diffractions are restrained by the processing accuracy unavoidably. In this paper, we propose a grating that incorporates a quasi-periodical array of rectangular holes, and achieves larger tolerance of processing errors compared with the previously designed gratings by optimizing the probability density distribution function of the holes. This paper describes an analytical study of the diffraction property of this grating. Theoretical calculations reveal that the grating completely suppresses the 2nd, 3rd, and 4th orders diffractions, and the ratio of the 5th order diffraction efficiency to that of the 1st is as low as 0.01% even if relative errors for hole sizes exceed 20%, which greatly decreases the required processing accuracy.","PeriodicalId":39871,"journal":{"name":"强激光与粒子束","volume":"32 1","pages":"072002-1-072002-6"},"PeriodicalIF":0.0,"publicationDate":"2020-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42987095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Dynamic modeling on a linear rolling guide based on thin layer element and spring element 基于薄层单元和弹簧单元的直线滚动导轨动力学建模

强激光与粒子束 Pub Date : 2020-06-24 DOI: 10.11884/HPLPB202032.200069

Chen Xueqian, Shen Zhanpeng, Elin Zhongyang, Fan Xuanhua

引用次数: 0

Laser beam coherence and divergence angle complex controlling technique 激光束相干性和发散角的复杂控制技术

强激光与粒子束 Pub Date : 2020-06-24 DOI: 10.11884/HPLPB202032.200078

Ni Xiaolong, Zhu Xufang, Yu Xin, Yao Haifeng, Chen Chunyi, Liu Zhi

{"title":"Laser beam coherence and divergence angle complex controlling technique","authors":"Ni Xiaolong, Zhu Xufang, Yu Xin, Yao Haifeng, Chen Chunyi, Liu Zhi","doi":"10.11884/HPLPB202032.200078","DOIUrl":"https://doi.org/10.11884/HPLPB202032.200078","url":null,"abstract":"To reduce the complexity and cost of partially coherent optical system, increase the convenience of partially coherent laser beam application, in this paper, we presents a method to control the coherence and divergence angle of laser beam complexly, using a liquid crystal spatial light modulator (LC-SLM). First, we introduce the basic theory and method to control the coherence and divergence angle of laser beam complexly using an LC-SLM; then, we put forward the experiment to test the coherence and divergence angle controlling accuracy. The experiment results show that, for a partially coherent laser beam with the coherence and divergence angle of 0.9 mm, 7.5 mrad and 1.5 mm, 3.8 mrad, the error of coherence is less than 5%, the root-mean-square errors of the degree of coherence are 0.027 386 and 0.031 314, and the peak-to-valley values are 0.084 658 and 0.089 103 respectively; the error of divergence angle is less than 5%, the root-mean-square errors of the divergence angle are 0.022 478 and 0.023 186, and the peak-to-valley values are 0.081 201 and 0.092 130 respectively. This method can control degree of coherence and divergence angle with high accuracy.","PeriodicalId":39871,"journal":{"name":"强激光与粒子束","volume":"32 1","pages":"071008-1-071008-8"},"PeriodicalIF":0.0,"publicationDate":"2020-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44644986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Principle study on exposure technique for double pulse high speed imaging based on direct control of CCD driving electrodes 基于CCD驱动电极直接控制的双脉冲高速成像曝光技术原理研究

强激光与粒子束 Pub Date : 2020-06-24 DOI: 10.11884/HPLPB202032.200012

Jiang Xiaoguo, Yang Xinglin, Yang Guojun, Zhang Xiaoding, Li Yiding, Li Hong, Jiang Wei, W. Tao

{"title":"Principle study on exposure technique for double pulse high speed imaging based on direct control of CCD driving electrodes","authors":"Jiang Xiaoguo, Yang Xinglin, Yang Guojun, Zhang Xiaoding, Li Yiding, Li Hong, Jiang Wei, W. Tao","doi":"10.11884/HPLPB202032.200012","DOIUrl":"https://doi.org/10.11884/HPLPB202032.200012","url":null,"abstract":"Charge coupled device(CCD) is one kind of photoelectric solid-state imaging device with excellent performance. It has the features of large array and good image quality. Working under very complex driving timing, it usually has low frame frequency and can not meet the demand of high imaging frame rate. The method of equivalent high frame rate imaging technique is introduced based on normal CCD in this paper. Some CCDs can be drived via electrodes separately. To meet the imaging demands of high frame rate, high resolution and high quality of two frame imaging technique for pulse light images, the right kind of CCDs should be adopted. The most important is that the CCD electrodes must be controlled directly and respectively. The charge transfer period is a key point while designing CCD driving timing for separate pulse light integration, charge package transfer and readout for two pulse light images. The validation experiments for the principle of equivalent high frame rate exposure of two pulse light images has been accomplished. It is shown that two pulse light images with interval of about 2 μs can be distinguished while all CCD’s inherent excellent performance are retained. A kind of two framing camera system with simple structure can be developed based on this principle.","PeriodicalId":39871,"journal":{"name":"强激光与粒子束","volume":"32 1","pages":"071001-1-071001-6"},"PeriodicalIF":0.0,"publicationDate":"2020-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43842970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

一款2 G/s采样率20 GHz带宽主从式跟踪保持电路设计研究一款2 G/s采样率20 GHz带宽主从式跟踪保持电路设计研究

强激光与粒子束 Pub Date : 2020-06-01 DOI: 10.11884/HPLPB202032.190421

Zhang Guifu, Zhou Jie, Liu Youjiang

引用次数: 0

Preliminary exploration of MagLIF concept and feasibility analysis on PTS facility 临时技术秘书处设施MagLIF概念初探及可行性分析

强激光与粒子束 Pub Date : 2020-06-01 DOI: 10.11884/HPLPB202032.190352

Zhao Hai-long, Wang Gang-hua, Wang Qiang, Zhang Hengdi, Xiao Bo, Kan Mingxian, Yang Long

引用次数: 2

Influence of surface sand blasting treatment on vacuum surface flashover characteristics of PMMA insulator 表面喷砂处理对聚甲基丙烯酸甲酯绝缘子真空表面闪络特性的影响

强激光与粒子束 Pub Date : 2020-06-01 DOI: 10.11884/HPLPB202032.190464

Guo Yuewen, L. Wenyuan, Huo Yankun, Ke Changfeng, Tang Yunsheng, Duan Li, Chen Changhua

{"title":"Influence of surface sand blasting treatment on vacuum surface flashover characteristics of PMMA insulator","authors":"Guo Yuewen, L. Wenyuan, Huo Yankun, Ke Changfeng, Tang Yunsheng, Duan Li, Chen Changhua","doi":"10.11884/HPLPB202032.190464","DOIUrl":"https://doi.org/10.11884/HPLPB202032.190464","url":null,"abstract":"Surface roughening treatment on insulators is an important way to improve their vacuum surface flashover characteristics. However, flashover voltages of the insulators with the same roughness show big deviation because of the poor uniformity of the surface rough structure and bad repeatability of the surface roughening method. To improve the uniformity of the surface roughening and the stability of the voltage-withstanding of the vacuum insulators, sand blasting roughening treatment on the surface of the cylindrical PMMA insulators was studied. First of all, the cylindrical insulators were sprayed on the rotating platform. With the collisions of the spherical micro SiO2 particles carried by the high-speed airflow, rough structure was fabricated on the surface. After the corrosion of the HF acid, residual SiO2 particles were removed, leaving homogeneous rough structure on the surface. The changes of the surface morphology were studied by Scanning Electron Microscope and the surface roughness of the treated insulators was tested on the surface roughness meter. Surface flashover characteristics of the sand-sprayed PMMA specimens were tested on the short-pulsed high-voltage platform. The test results indicated that homogeneously rough surface was prepared by the sand blasting treatment and the surface flashover voltages of the treated insulators were improved steadily. Compared with the untreated PMMA specimens, flashover voltages of the sand blasted insulators were improved approximately 80%.","PeriodicalId":39871,"journal":{"name":"强激光与粒子束","volume":"32 1","pages":"065002-1-065002-6"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48704150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detection of spike protein of SARS-CoV-2 by surface enhanced Raman spectroscopy 表面增强拉曼光谱法检测SARS-CoV-2刺突蛋白

强激光与粒子束 Pub Date : 2020-06-01 DOI: 10.11884/HPLPB202032.200145

Jinglin Huang, Minjie Zhou, Le Wei, Chen Guo, Shuang Ni, Niu Gao, L. Zeyu, Zongqin Zhao, Zhibing He, Li Bo, Song-nan Zhao, Bao-Han Zhang, Du Kai

引用次数: 5

A beam energy feedback for ultrafast electron diffraction facility 用于超快电子衍射装置的光束能量反馈

强激光与粒子束 Pub Date : 2020-05-12 DOI: 10.11884/HPLPB202032.190415

Zhang Jun-qiang, Li Lin, Li Yajuan, Jiang Tao, Xiao Chengcheng, Gu Qiang, X. Dao

引用次数: 2

Experimental research of monochromatic X-ray microscopy 单色x射线显微镜的实验研究

强激光与粒子束 Pub Date : 2020-05-12 DOI: 10.11884/HPLPB202032.190486

Chen Liang, Xu Jie, Liao Wenjie, Liu Hanwei, Wang Xin, Mu Baozhong

引用次数: 0