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[期刊论文] 作者:TingzhongZhang,XiaowuNi,JianLu, 来源:ChineseOpticsLetters 年份:2015
A two-dimensional, transient model is proposed to study the dynamic process of keyhole formation and the material changes during both the laser-on and -off periods. The keyhole shape, temperature field, and velocity field are analyzed. The ......
[期刊论文] 作者:YannanYang,XiaowuNi,BoYang, 来源:ChineseOpticsLetters 年份:2005
A numerical study of the expansion of a laser-induced plasma is given by using of techniques of computational fluid dynamics. According to the experiment results reported, the density of electrons is assembled on the surface of the ionizati......
[会议论文] 作者:JingJia;ZhonghuaShen;LingYuan;XiaowuNi;, 来源:2012年全国光学工程博士生论坛 年份:2012
  This research focuses on measuring the mode transformation and energy attenuation of wedge waves by the laser ultrasound technique.First,the finite-element...
[期刊论文] 作者:GangYan,ZhonghuaShen,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2005
In the field of nondestructive evaluation, laser generation and detection of the surface acoustic waves (SAWs) are potentially useful for investigating material surfaces. SAW generated by laser line source is carried out on a kind of optica......
[期刊论文] 作者:WeihuanDing,ZhonghuaShen,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2005
In this paper, by means of a high-sensitive optical beam deflection technique combined with electrical delay technique, shock wave and cavitation effects by laser ablation of a metal in water are investigated in detail. The system is quite ......
[期刊论文] 作者:ZhonghuaShen,JianfeiGuan,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2005
The improvement of the generation efficiency has attracted much attention, confronted with the little amplitude of acoustic wave generated by pulsed laser in the thermoelastic regime. This paper constructed the finite element model to simul......
[期刊论文] 作者:HongchaoZhang,JianLu,XiaowuNi,ZhonghuaShen, 来源:ChineseOpticsLetters 年份:2005
Two models to calculate the irradiance threshold for laser-induced breakdown for water have been introduced. Both of the models have been incorporated into a computer code and code results compared to experimentally measured irradiance thre......
[期刊论文] 作者:YanQian,RongqingXu,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2005
By means of an optical fiber sensor based on beam deflection technique, the laser-induced plasma shock waves propagating in transparent organic glass are systemically investigated in experiments. Under the condition of free attenuation of s......
[期刊论文] 作者:BoYang,XiaoChen,RongqingXu,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2005
The gas content is one of the important bubble parameters. In this article, the gas content effect on the bubble motion is investigated by numerical simulation based on the spherical bubble model. The dependence of the bubble radius, oscill......
[期刊论文] 作者:ZhonghuaShen,SenYuan,JianfeiGuan,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2005
Laser generated ultrasonic waves is numerically simulated by mass spring lattice model by considering the laser illumination as a vertical force, which is valid in the ablation regime. Few surface acoustic wave modes including surface skimm......
[期刊论文] 作者:LingYuan,KaihuaSun,ZhonghuaShen,XiaowuNi,YipingCui, 来源:中国激光 年份:2012
[期刊论文] 作者:YingLiu,RongqingLi,XiufengLan,ZhonghuaShen,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2005
The ethanol-water mixtures can emit fluorescence when excited by the ultraviolet (UV) light, which is different from pure ethanol and water. There are three emission bands of the mixtures and the center bands are located at 290, 305, and 33......
[期刊论文] 作者:XiufengLan,YingLiu,XiaosenLuo,ZhonghuaShen,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2005
Based on the experimental researches on the fluorescence spectra of 1% erythrocyte solution with various concentration of alcohol excited by violet light-emitting diode LED light at 407 nm, the mechanism of alcohol on the fluorescence spect......
[期刊论文] 作者:JijunWang,ZhonghuaShen,BaiqiangXu,XiaowuNi,JianfeiGuan,JianLu, 来源:ChineseOpticsLetters 年份:2005
Laserultrasoundisatechniquebasedonlaserstogenerateanddetectultrasoundremotely.Thethermalexpansionarisingfromtheopticalabsorptionofashortlaserpulsegeneratesultrasonicwave.Byusingfiniteelementmethod,thisstudypresentsasourcemodelforlaserultras......
[期刊论文] 作者:XiaosenLuo,ChunkanTao,XiufengLan,ZhonghuaShen,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2005
To study characteristics of acoustic wave generated by Q-switched laser on dermal pigmented lesions, pieces of derma peeled from a cavy's body are plucked their hair. The pieces of derma are radiated by Q-switched laser with different energ......
[期刊论文] 作者:ShumeiGao,XiufengLan,YingLiu,ZhonghuaShen,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2004
We measured the fluorescence spectra of the whole blood, the red blood cell (RBC) and the hemoglobin using 457.9-nm Ar laser excitation. It was found that the fluorescence spectra of the whole blood and the RBC have much similarities in th......
[期刊论文] 作者:JianfeiGuan,ZhonghuaShen,JianLu,XiaowuNi,JijunWang,BaiqiangXu, 来源:ChineseOpticsLetters 年份:2005
In order to further confirm the relations between the size of internal defect and the measured ultrasonic signals and understand the interaction mechanism between the ultrasonic wave and inside defect, this paper has constructed the two-dim......
[期刊论文] 作者:ZhichaoJia,TingzhongZhang,HuazhongZhu,ZewenLi,ZhonghuaShen,JianLu,XiaowuNi, 来源:ChineseOpticsLetters 年份:2018
The stress damage process of a single crystal silicon wafer under millisecond laser irradiation is studied by experiments and numerical simulations. The formation process of low-quality surface is monitored in real-time. Stress damage can b......
[期刊论文] 作者:XiufengLan,TaoYang,ShumeiGao,XiaosenLuo,ZhonghuaShen,JianLu,XiaowuNi,LinXu, 来源:ChineseOpticsLetters 年份:2003
The technique of fluorescence spectroscopy is applied to study thioredoxin reductase (TrxR) in the cells of human brain. Experimental results show that, by the violet light emitting diode (LED, λmax=407 nm) light irradiation, TrxR is able ......
[期刊论文] 作者:JuCheng,JiaZhang,HongchaoZhang,SardarMaryam,XintianBian,ZhonghuaShen,XiaowuNi,JianLu, 来源:ChineseOpticsLetters 年份:2017
A series of RE3...
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