共查询到20条相似文献,搜索用时 250 毫秒
1.
YANG Xihua SUN Zhenrong LI Hua DING Liang’en WANG Zugeng 《Chinese Journal of Lasers》2001,10(2):123-126
1 Introduction Electromagneticallyinducedtransparency(EIT)hasattractedmuchattentionduetoitsextensiveapplications,suchasquantumnoisereduction[1] ,pulsematching[2 ,3] ,andenhancementofnonlinearmixing[4 ,5] .Inessence,EITisanatomiccoherenceinducedbyastrongcouplingl… 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.
1 Introduction Thesynthesisofcarbonnitridethinfilmshasbeenthesubjectofintensestudysincethetheoretical predication[1,2 ] andexperimentalrealization[3] of β C3N4thinfilms.Manyattemptshavebeenmadetosynthesizethismaterialby physicalandchemicalmethods ,suchasreact… 相似文献
4.
Falihati. Mejiti V.L.Kalashnikov I.G.Poloyko Toran. Vajidi Physics Department Xinjiang University Urumqi China International Laser Center Belorussian State Poletechnical Academy Skoryna Ave. Bldg.. M 《Chinese Journal of Lasers》2002,(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
5.
1 Introduction Inrecentyears,thedifferentialabsorptionlidar (DIAL)hasbecomethepowerfultooltomeasuretheatmospheric pollution .NO2 ,itscharacteristicabsorptionwavelengthsat 4 4 8.1nmand 4 4 9.1nm ,isoneofthemostimportantpollutioninatmosphere .Apowerfuldyelaserpumped… 相似文献
6.
Analysis and Improvement of Reflection-type Transverse Modulation Optical Voltage Sensors 总被引:1,自引:0,他引:1
LUO Sunan YE Miaoyuan XU Yan CUI Ying 《Chinese Journal of Lasers》2001,10(1):34-39
1 Introduction Opticalfibervoltagetransformersarebeingdevelopedforuseintheelectricpowersystem[1 ,2 ] ,becauseoftheiroutstandingadvantagessuchassimpleinsulantionstructure,immunitytoelectromagneticinterference ,nosaturationeffect,noflammablematerialssuchasoi… 相似文献
7.
1 Introduction Pupil planefilterscanbeusedtochangethelightintensitydistributioninthefocalplane ,sotheyhavepotentialapplicationsintheareasofopticaldatastorage[1~ 3 ] ,lithography[4] ,andmicroscopy[5~ 7] .Manypupilfiltershavebeenstudied ,suchasfilterswithvariedamp… 相似文献
8.
1 Introduction Thenegative groupdelaydispersion(GDD) providedbyapairofprismordoubleprismshasplayedanimportantroleinintracavity[1] orextracavity[2 ] dispersioncompensationforultra shortpulse generationduetoitsadvantages,suchaslowloss,easyalignmentandcompactne… 相似文献
9.
1 Introduction Alongperiodfibergrating (LPFG)isanovelpassivefiberelementarisinginrecentyears[1] .SeveralapplicationsofLPFGhavebeenfound ,suchas gain profileflattenedfilter,band rejectionfilter,andtemperature ,strainornewchemicalsensors[2 ,3] .ItcanbeUV writtenor… 相似文献
10.
LIU Deli QI Dongping CHENG Chuanfu 《Chinese Journal of Lasers》2000,9(3):213-218
1 Introduction Someusecontacttechniques(suchasprofilometry,scanningprobemicroscopy)andtheothersusenoncontacttechniques,mostofwhichareactuallyopticalmethods,andlightscattering[1,2],ellipseometry[3]andsurfaceplasmonspectroscopy[4]aretheexamples.Uptonow,thedeter… 相似文献
11.
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
12.
1IntroductionSOAwilbeoneofthekeycomponentsinthealopticalnetworkinthefuture.SOAhasmanyveryimportantapplications,suchaswavelen... 相似文献
13.
SONG Yanrong LI Zhonghao XIAO Yan WANG Haibing ZHOU Guosheng 《Chinese Journal of Lasers》2000,9(1):15-19
1 Introduction Withincessantappearanceofnewlasercrystalswitheverwiderfluorescencespectrum,suchasTi∶sapphire,Cr4 ∶YAG,theprelimi... 相似文献
14.
ZHANG Qidi ZHAO Shengzhi ZHANG Xingyu WANG Qingpu ZHENG Jia’an SUN Lianke ZHANG Shaojun 《Chinese Journal of Lasers》2001,(1)
1 Introduction Inrecentyears,greatattentionhasbeenpaidtohighpeakpowerall solid statepulsedblue greenlasersforsomeapplicationssuchasspectroscopy,display ,opticaldatastorage ,underseacommunicationsandsoon .Theintracavityfrequencydoublingofacwdiode laser pump… 相似文献
15.
The Experimental Study on Wide band Tunable All-fiber Acousto-optic Filter Based on Null Coupler 总被引:1,自引:0,他引:1
1 Introduction InWDMopticalfibercommunicationandnetworkapplications,manyopticalcontrollabledevicesaredemanded ,suchaschannelgain/ powerequalizer,channelselector,opticalswitching ,andadd/dropmultiplexer,etc .Inmanycases,wavelengthtunabilityisneeded .Thebulkw… 相似文献
16.
Liu Guoxiang Hu Li Ye Kunzhen Lin Weigan 《Chinese Journal of Lasers》2002,11(3):193-197
1 Introduction Therapidgrowthoffiberopticsystemsandapplicationshasincreasedthedemandforhigh performanceandlow lossfiberopticcomponentslikecouplers,switches,modulators,detectorsandsources.Thishasresultedinincreasinginterestinintegrateddevices ,wherethese… 相似文献
17.
1 Introduction Inphotorefractivecrystal,manyapplications,suchasimageamplificationandimagestorage ,needtousethepropertyofhighdiffractionefficiency .Someauthors[1] havereferredthathighdiffractionefficiencyinphotorefractiveLiNbO3crystalcanbeobtainedbywriting… 相似文献
18.
ZHANG Weigang { } FENG Dejun DING Lei KAI Guiyun DONG Xiaoyi YAO Chunde {} Institute of Modern Optics Nankai University Tianjin China {} Gungxi University of Technology Liuzhou China {} National E 《Chinese Journal of Lasers》2001,10(3):174-178
1 Introduction ThefiberBragggrating (FBG) ,asanewpassivesourceelement,hasmanyimportantadvantagessuchasvolumeminuteness ,compatibilitywithfibersystem ,collectionfrequencyforwavelengthandsoforth .Thus ,FBGisplayinganimportantroleinthefibergratingsensingtechn… 相似文献
19.
ZHANG Xiqin XING Da 《Chinese Journal of Lasers》2001,10(5):373-377
1 Introduction Extractingusefulinformationaboutthedynamicalscatterersfromthetemporalfluctuationsofscatteringlightfieldhasbeenstudiedformanyyears.Thedevelopmentofdiffusing wavespectroscopy[1~ 3 ] (DWS)hasextendedthetraditionalapplicationsinsingle scatterin… 相似文献
20.
YANG Shengli CHEN Mouzhi 《Chinese Journal of Lasers》2002,11(1):23-26
1 Introduction Severalbiaxialcrystals ,suchasKTP ,LBO ,havesomeexcellentproperties,suchaslargenonlinear (NL )coefficients,widewavelengthrangesoftransmission ,andeasilygrowinglargesizecrystalwithhighquality .Thebiaxialcrystalshavebeenextensivelyusedinlaserfr… 相似文献