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1.
·LASERDEVICES·ExperimentalStudyonActive passiveMode lockingUsingCr4 + ∶YAGasSaturableAbsorber1 61 1AMicrochipTunableBlueLaserSourceBasedUponCr∶LiSAFinContactwithKNCrystal1 61 5HighPower 940nmAl freeActiveRegionLaserDiodesandBarswithaBroadWaveguide1 61 91 .3 2 μmNd3+ ∶Y…  相似文献   

2.
1 Introduction  Cr4 ∶YAGhasbeenusedwidelyasasaturableabsorptionQ switchingtoachievethe giant pulseinNd∶YAGlaser[1,2 ] .Inaddition ,Cr4 ∶YAGisalsoagoodlasercrystaloverthewavelengthrangefrom 1 3 4 0nmto1 580nmtogeneratefspulse[3 ,4 ] .Recently ,withthediscoveryofthesatur…  相似文献   

3.
HighopticalqualityNd∶CdCOBcrystal (7%Nd,2 5× 40mm3)usedintheexperimentwasgrownwithCzmethod.TwocrystalspecimensarecutattypeIphasematching:forspecimen 1 ,θ=66.5°,=1 45.5°;forspecimen 2 ,θ=65°,=3 4 .6°.Usingplane (2 0 1 ) ,(4 0 1 )and (0 1 0 )asplaneofreference,therespectiveanglesofspecim…  相似文献   

4.
1 Introduction  InrecentyearsLiNbO3crystalshavereceivedmuchattentionbecauseoftheirexcellentnonlinearproperties,andcanbeusedformanyapplicationsinthefieldsofelectro optics,laser physics,holographyandacoustics.Periodically poledcongruentLiNbO3 crystal (PPLN )h…  相似文献   

5.
1 Introduction  Cr,Tm ,Ho∶YAGisakindofveryimportant 2 μmlasercrystal,whose 2 .1 μmlaserisabsorbedstronglybywatercomponentoftissue,resultinginshallowtissuepenetrationandgoodsurgicalprecisioninmosttypesofsoftandhardtissue .Ho∶YAGlaserhasbecomeanimportantsource…  相似文献   

6.
1 Introduction  Withincessantappearanceofnewlasercrystalswitheverwiderfluorescencespectrum,suchasTi∶sapphire,Cr4 ∶YAG,theprelimi...  相似文献   

7.
Thebluelightisoneofthemostinterestingtopics[1~ 8] .ThispaperinvestigatestheblueupconversionluminescencephenomenonofYb3 dopedoxyfluoridevitroceramicsYb( 5)∶FOVandYb( 0 .5)∶FOVwhenexcitedby 96 0nmdiodelaser .Anewkindofup -conversioncooperativeradiationfluorescencew…  相似文献   

8.
1 Introduction  Thelasingperformancesofrare earthionTm3 dopedlasercrystalsat~ 2 .3 μmand~1 .9μmwavelength ,correspondingto3H4→3H5 and3F4→ 3H6 transitionswerestudiedbyJ .A .Caird[1] andL .F .Johnson[2 ] .RecentlyF .S .Ermeneux[3] suggestedthelasingpossibilitiesofTm3 dopedlaserc…  相似文献   

9.
1 Introduction  Cr∶LiSAFlaserhasatuningrangefrom780to 1 0 2 0nm ,andanexcitedlifetimeof67μs[1 ] whichissuitableforflashlamppumpingandQ switching.Therefore ,thelaserhasapotentialapplicationindifferentialabsorptionlidar (DIAL) .The 2nd ,3rdand 4thharmonicwavesofpulseout…  相似文献   

10.
1 Introduction  Severalbiaxialcrystals ,suchasKTP ,LBO ,havesomeexcellentproperties,suchaslargenonlinear (NL )coefficients,widewavelengthrangesoftransmission ,andeasilygrowinglargesizecrystalwithhighquality .Thebiaxialcrystalshavebeenextensivelyusedinlaserfr…  相似文献   

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

12.
1 Introduction  Self frequency doublinglasercrystals,whichcombinetwodifferentfunctionsoflaseremissionandfrequencyconversion ,provideasimplewayofgeneratingcoherentvisibleradiation .Amongthevariousself frequency doublingcrystals ,neodymiumyttriumaluminumbora…  相似文献   

13.
1 Introduction  Themodularmicro channelcoolingheatsinksasmodularpackageforhighpowerlaserdiodearrayhavebeenusedforthediode pumpedsolid statelasersinthekWrange[1] ,sinceitisinvented[2 ] anddisclosed[3] .Inordertoapplythetechnologytoindustryprocessingthiskindofd…  相似文献   

14.
《物理》2000,29(6)
1 Noncquilibrium patternsingranularmixingandsegregation(TroyShinbrot ,FernandoJ.Muzzio .Phys .Today ,2 0 0 0 ,No .3)2 Atmosphericinfrasound (AlfredJ .BedardJr ,ThomasM .Georges.Phys.Today ,2 0 0 0 ,No .3)3 Liquidcrystalsandcarbonmaterials(RobertH .Hurt,Zhong YingChen .Phys.Today ,…  相似文献   

15.
1 Introduction  Thegenerationofshortpulsetrainswithhighrepetitionratesisimportantformanyapplications,andactivelymode lockingfiberringlasersarepromisingsourcesofhighrepetitionratetransform limitedopticalpulses.Comparedwithactivelymock lockingsemiconducto…  相似文献   

16.
1 Introduction  Microchiplasersareminiatureandconsistofasliceofgainmaterialandnonlinearcrystal,withmirrorcoatingdepositedonthefacestodefinea plano planolasercavity .Manyapplicationsrequireareliable ,efficientandshort wavelengthlightsource .Microchipbluela…  相似文献   

17.
Single Frequency Operation of Diode-pumped Intracavity Frequency Doubled Nd:YAG Laser With Tilted KTP Crystal: Theoretical St...  相似文献   

18.
1 Introduction  Someparticularapplicationsdemandustominimizetimingjitterinmode lockedsolid statelasers.Asweknow ,therearedifferencesamongthepulsesintervalsinapulsestrain ,whichcausetheinstabilityofthelaser,andtherootofthemeansquaredofthedifferencesiscall…  相似文献   

19.
AlargesizeandhighopticalqualityNd∶GdCOBcrystalwasobtainedbyCZpullingmethod.Thecrystalswerecutintwosamplewiththesamedimensionof3× 3× 8mm3 .TheoscillatinglasertravelsthroughonesamplealongX axisandtheotheralongY axis〔theanglesbetweenthecrystallophysicaxisand…  相似文献   

20.
AlargesizeandhighopticalqualityNd∶GdCOBcrystalwasobtainedbyCZpullingmethod.Thecrystalswerecutintwosamplewiththesamedimensionof3×3×8mm3.TheoscillatinglasertravelsthroughonesamplealongXaxisandtheotheralongYaxis〔theanglesbetweenthecrystallophysicaxisandthe…  相似文献   

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