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1.
1 Introduction  Inphotorefractivecrystal,manyapplications,suchasimageamplificationandimagestorage ,needtousethepropertyofhighdiffractionefficiency .Someauthors[1] havereferredthathighdiffractionefficiencyinphotorefractiveLiNbO3crystalcanbeobtainedbywriting…  相似文献   

2.
1 Introduction  Withincessantappearanceofnewlasercrystalswitheverwiderfluorescencespectrum,suchasTi∶sapphire,Cr4 ∶YAG,theprelimi...  相似文献   

3.
1 Introduction  Recently ,laser performanceofnewYb3 ∶KY (WO4) 2 crystal (Yb3 ∶KYW )hasbeenobtainedat 1 0 2 5nm[1] .TheYb3 ∶KYWcrystalisa promisingmaterialformicrochipand passivemode lockedlaserstunableintherangeof 1 0 2 0~ 1 0 6 0nm .ItisknownthatKerr lensmode lockingtechniq…  相似文献   

4.
1 Introduction  ThestudyontheYVO4crystalcanbetracedbackto 1 970′s.Howeverduetoitspoorheatconductivity ,ithasnotbeenconsideredasagoodcandidateforflashlamp pumpedlasersystem .Lately ,thedevelopmentofLDlaserandnarrowbandLD pumpingtechnologyaimedattheabsorption p…  相似文献   

5.
Introduction  Duetoanisotropicopticalandelectricalproperties,theopticalpropertiesofliquidcrystalscanbeadjustedbyelectricfield,andthusthediffractiongratingfabricatedusingliquidcrystalscanbeadjustablebyelectricfield.Suchdeviceshavepotentialapplications…  相似文献   

6.
Single Frequency Operation of Diode-pumped Intracavity Frequency Doubled Nd:YAG Laser With Tilted KTP Crystal: Theoretical St...  相似文献   

7.
1 Introduction  Severalbiaxialcrystals ,suchasKTP ,LBO ,havesomeexcellentproperties,suchaslargenonlinear (NL )coefficients,widewavelengthrangesoftransmission ,andeasilygrowinglargesizecrystalwithhighquality .Thebiaxialcrystalshavebeenextensivelyusedinlaserfr…  相似文献   

8.
Self-trappingandSelf-focusingofLightBeamsinUniaxialCrystals¥GUOQi(InstituteofQuantumElectronics,SouthChinaNormalUniversity,Gu...  相似文献   

9.
1 Introduction  Microchiplasersareminiatureandconsistofasliceofgainmaterialandnonlinearcrystal,withmirrorcoatingdepositedonthefacestodefinea plano planolasercavity .Manyapplicationsrequireareliable ,efficientandshort wavelengthlightsource .Microchipbluela…  相似文献   

10.
1 Introduction  InrecentyearsLiNbO3crystalshavereceivedmuchattentionbecauseoftheirexcellentnonlinearproperties,andcanbeusedformanyapplicationsinthefieldsofelectro optics,laser physics,holographyandacoustics.Periodically poledcongruentLiNbO3 crystal (PPLN )h…  相似文献   

11.
1 Introduction  Therapiddevelopmentofhigh powerdiodelasershasresultedinthesearchformoreefficientsolid statelasermaterialsforvariousapplications.Thelaseremissionfromthe4F3 / 2 4I11/ 2 transitionofNd3 + ionshasbeenobservedinavarietyofNd dopedcrystalsusingflashlam…  相似文献   

12.
1 Introduction  Itiswellknownthattherearetwomainmaterialsystemsforlong wavelengthsemiconductorlasers.TheIn1 -xGaxAs1 -yPy systemhasbeenresearchedextensively[1 ,2 ] ,buttheIn1 -x-yGayAlxAssystemonlyrecentlybegantoyieldhighqualityresults[3,4] .FortheIn1 -x-yGayAlxAssys…  相似文献   

13.
LIUJunhai SHAOZongshu MENGXianlin ZHANGHuaijinZHULi JIANGMinhua(NationalLaboratoryofCrystalMaterials,ShandongUniversity,Jinan250100,China)ReceivedMarch22,1999;RevisedmanuscriptreceivedMarch29,1999DevelopedbyRussianresearchersin1992,Nd∶GDVO4isapotenti…  相似文献   

14.
1 Introduction  Thesinglefrequencyinterferometerandthedual frequencyinterferometeraretwopowerfultoolsformeasuringdisplacement.Buttherearesomedisadvantagesforbothsinglefrequencyanddual frequencyinterferometers.Eitherofthemmustuseahighprecisetrackandthel…  相似文献   

15.
1 Introduction  SincethefirstgenerationofCr∶LiCaAlF6laserreportedbyS .A .Paynein1988[1] ,therehasbeenincreasinginterestinCr dopedcrystalsastunable ,ultrashort pulse ,all solid statelasermaterials,andtherehavebeenmanyreportsonCr∶LiCAF ,Cr∶LiSAF ,Cr∶LiSCAFandCr∶LiS…  相似文献   

16.
1INTRODUCTIONInarealcrystalsystem,thelaticevibrationswilnotbetheeigenstatesofthesys-tem,i.e.,aninitialymonochromaticnonequili...  相似文献   

17.
AlargesizeandhighopticalqualityNd∶GdCOBcrystalwasobtainedbyCZpullingmethod.Thecrystalswerecutintwosamplewiththesamedimensionof3× 3× 8mm3 .TheoscillatinglasertravelsthroughonesamplealongX axisandtheotheralongY axis〔theanglesbetweenthecrystallophysicaxisand…  相似文献   

18.
1IntroductionCrystalsandglasesdopedwithtrivalentyterbiumionsexhibithighlyeficientemisionusingInGaAslaserdiodesaspumpsources.S...  相似文献   

19.
AlargesizeandhighopticalqualityNd∶GdCOBcrystalwasobtainedbyCZpullingmethod.Thecrystalswerecutintwosamplewiththesamedimensionof3×3×8mm3.TheoscillatinglasertravelsthroughonesamplealongXaxisandtheotheralongYaxis〔theanglesbetweenthecrystallophysicaxisandthe…  相似文献   

20.
1 Introduction  Inrecentyears,researchershavepaidmuchattentiontoselffrequencydoublingmultifunctionalcrystalforobtainingdirectl...  相似文献   

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