共查询到20条相似文献,搜索用时 31 毫秒
1.
YANG Xihua LI Yongfang SUN Zhenrong DING Liang'en WANG Zugeng 《Chinese Journal of Lasers》2002,11(3):173-177
1 Introduction In 1 970s,KopeikinaandYansonreportedthattheexcitedmoleculescouldeffectivelyexchangetheirenergiestotheground stateatomsthroughcollisionalenergy transferandsubsequentlycauseconsiderablepopulationintheexcitedatomicstatesinsodiumor potassiumva… 相似文献
2.
1 Introduction Theinfraredtovisibleupconversionprocessesinrareearthdopedfiberhavebeenattractinggreatinterestbecauseofitsappl?.. 相似文献
3.
ZHENG Ruihua CHENG Deying ZAO Xiaoyan LU Zhiwei MA Zuguang 《Chinese Journal of Lasers》2001,10(1):51-56
1 Introduction Laser inducedcollisionenergytransfer(LICET)isanopticalphenomenoninvolvingthesimultaneousinteractionsofboththelaserfieldandcollision[1~ 3 ] .ThisLICETreactioncanbewrittenas:A B hΩ →A B (1)Duringthecollisionofatom Awithatom B ,atomAgoesbacktogr… 相似文献
4.
1 Introduction Laserdiode(LD)pumpedpassivelyQswitchedminiaturelaserscangeneratehighpowerandhighrepetitionratepulsesinthenanosecondandsubnanosecondregimes,andhavewideapplicationsinmicromachining,ranging,remotesensing,microsurgeryandsoon.Owingtolaserdiode… 相似文献
5.
1 Introduction Adouble beamsmutuallypumpedphaseconjugatorgeneratesthephase conjugatereplicaofeachoftwoincidentopticalbeams[1~ 7] .Thetwoincidentbeamsneednotbecoherentwitheachother,andtheycanevenbefromdifferentlasersoperatingatthesamenominalwavelength .Mut… 相似文献
6.
1 Introduction Diode pumpedsolid state passive Q switchedsecondharmonicgenerationlaserhashighpowerandhighrepetitionratepulseinnanosecondperiod ,andvariousapplicationsinmicro mechanics ,measurements,film carve ,micro operationsinsurgery ,andsoon[1] .Recent year… 相似文献
7.
LI Jinyan HOU Lisong GAN Fuxi 《Chinese Journal of Lasers》2001,10(4):305-309
1 Introduction Opticaldatastoragebymarkingofmicron sizedspotsonadiskwithalaserisanareawithongoingresearchactivity .Opticaldiskdatastoragehasthecombinedadvantagesofhighstoragedensity ,diskremovable,andlargehead diskworkingdistance.Inrecentyears ,write once… 相似文献
8.
LIU Huiyong JIANG Fusong MEN Liqiu FAN Zhengxiu GAN Fuxi 《Chinese Journal of Lasers》1998,7(2):158-163
HighReflectionGe0.45Te0.55RecordingFilmsLIUHuiyongJIANGFusongMENLiqiuFANZhengxiuGANFuxi(ShanghaiInstituteofOptics&FineMechani... 相似文献
9.
WANG Yan YIN Shaotang YU Xiling ZHANG Qingli WANG Aihua CAO Yuhui CHANG Yong WANG Xiaoguang Crystal Laboratory Anhui Institute of Optics Fine Mechanics The Chinese Academy of Sciences Hefei 《Chinese Journal of Lasers》2002,(3)
1 Introduction Cr,Tm ,Ho∶YAGisakindofveryimportant 2 μmlasercrystal,whose 2 .1 μmlaserisabsorbedstronglybywatercomponentoftissue,resultinginshallowtissuepenetrationandgoodsurgicalprecisioninmosttypesofsoftandhardtissue .Ho∶YAGlaserhasbecomeanimportantsource… 相似文献
10.
Electron Impact Ionization Cross Section for Excited State of Ne like Ions in Detailed
Configuration
CHEN Chongyang WANG Yansen YANG Fujia 《Chinese Journal of Lasers》1999,8(1):66-70
1IntroductionElectronioncolisionionizationisoneofthemostimportantprocesesinatomicphysics.Theionizationcrossectionsareveryimp... 相似文献
11.
Electromagnetic Diffraction Analysis of 2-D Antireflective Subwavelength Grating with Coned Profile 总被引:2,自引:0,他引:2
1 Introduction Itiswellknownthatconventionalmethodsof producingextremelybroadbandantireflectivesurfacesarelimitedintheinfraredregion ,becauseofthelimitednumberofthin filmcoatingmaterialsavailableforusetoday .Subwavelengthsurface relief gratingshavebeenr… 相似文献
12.
1 Introduction Two photonabsorption (TPA )isanimportantnonlinearabsorptionprocessinbothbasicandappliedresearches.Formanyyears,duetotherelativelysmallTPAcross sectionsofmostmaterials,two photonprocesseswerefoundlimitedapplications.Lately ,greatprogresseshav… 相似文献
13.
WANG Chun WANG Xiaomei SHAO Zongshu ZHAO Xian ZHOU Guangyong WANG Dong JIANG Minhua 《Chinese Journal of Lasers》2001,10(3):233-237
1 Introduction Two photonabsorption (TPA)isaprocessinwhichtwophotonsaresimultaneouslyabsorbedtoanexcitedstateinamediumviaavirtualstate .TPAintensityischaracterizedbyTPAcrosssection .SuchmaterialswithlargeTPAcrosssectionhavereceivedconsiderableattentioni… 相似文献
14.
1 Introduction Inthepastthirtyyears ,muchattentionhasbeenpaidtotheconversionofnearinfraredradiationtovisiblelightinrareearthdopedmaterialsduetoits potentialapplicationsinoptical disktechnology ,informationtechnology ,colordisplaysandsoon .Manykindsofrare… 相似文献
15.
LI Xide 《Chinese Journal of Lasers》2000,9(3):275-281
1 Introduction Computerizedtomographyisoneofthemosteffectivetechniquesinthreedimensionreconstruction,whichneedsprojectionsinvariousviewingdirectionscovering180.Generally,theseprojectionsareasetoflineintegralsoftheabsorptioncoefficients(e.g.inmedicaldiagn… 相似文献
16.
The Study on the Laser Ignition Modeland Its Analytic Solution of Solid Energetic Materials 总被引:1,自引:0,他引:1
ZHANG Huisheng CHEN Hanping 《Chinese Journal of Lasers》2000,9(4):376-384
1 Introduction Laserignition ,asaprospectivenew typeignitingtechnologyforengineeringapplication ,ispaidmoreandmoreattentionbymanycountries.Thelaserignitionisaverycomplicatedheatingprocess,wecannotknowthedetailedsectioncompletelybyexperimentsonly ,soatthe… 相似文献
17.
Dispersion Compensators Based on Overlaped Linearly Chirped Fiber Gratings for DWDM Systems 总被引:1,自引:0,他引:1
1 Introduction ThereisagreatdealofinterestinfiberBragggratingsduetotheirmanyimportantapplicationsinthefieldoftelecommunicationsandfibersensors .BecausefiberBragggratingsexhibitdispersionbothinreflection ,especiallywhenthe gratingischirped[1] ,andintransm… 相似文献
18.
1 Introduction SinceAshkinetal.[1] proposedtheopticaltrappingofdielectricparticlesbyasingle beamgradientforcetrap ,opticaltweezerstechnologyarousedtheinterestofresearchers,howevertheirattentionwasconcentratedonhighNAmicrolenstweezers.Opticaltrappingtechn… 相似文献
19.
GAO Yiqing 《Chinese Journal of Lasers》1996,5(2):150-156
3-DPhaseObjectReconstructionUsingBeam-DeflectionIterativeTomography¥GAOYiqing(NanchangInstituteofAeronauticalTechnology,Nanch... 相似文献
20.
CHEN Xiyuan 《Chinese Journal of Lasers》1995,4(6):537-542
EffectsofChangeintheAveragePermittivityonTheVolumeHologram¥CHENXiyuan(PhysicsSection,Section,FushunPetroleumInstitute,Fushun1... 相似文献