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1.
Al┐OpticalBypas┐ExchangeSwitchesYUNZhishengLIYulinLIUJifangXUXuemei+)LIUMuxing+)(XianInstituteofOptics&PrecisionMechanics,C...  相似文献   

2.
Introduction  Bythemethodoflaseropticalpumpingspin exchange ,theNMRsignalfrom 1 2 9Xegascanbegreatlyenhanced[1 ] .Theobservedratioofsignaltonoiseisbetterthan 10 0 .Theamplificationfactorofthenuclearspinpolarizationoflaser polarized 1 2 9Xeis 10 4bycomparisonwiththeB…  相似文献   

3.
1 Introduction  Thefiberdevicesbasedonfiberfusednullcouplerarerecentlyofgreatinterest.All fiberacousto opticswitch[1] ,tunableopticalfilter[2 ] ,opticaladd dropmultiplexer (OADM ) [3] andfiberpolarizer[4 ] havebeenreported .Foralltheseapplications ,nullcouplerwithlow…  相似文献   

4.
1 INTRODUCTIONMetal ionelectrostaticinterationsarenumerousinchemicalsystemsandhavebeenstudiedextensively[1~ 15] .Specifically ,metal c  相似文献   

5.
1 Introduction  TheconventionalMach Zehnderinterferometerisanimportantdiagnostictool.Frequentlyusedinthefieldsofplasmaphysics,aerodynamics,andheattransferformeasuringdensity ,pressure ,andtemperaturechangesingases.Becauseofitsrelativelylargeandfreelyacces…  相似文献   

6.
1 Introduction  Theultrafastpulsescanningnear fieldopticalmicroscopyandtemporalresolutionnear fieldspectraltechnique,whichdevelopedfromthecombinationofscanningnear fieldopticalmicroscopy (SNOM )andtheultrafastpulse,haveattractedgreatinterest[1~ 3] .Thesetech…  相似文献   

7.
1 Introduction  FRT(FractionalFourierTransform )wasfirstlyintroducedbyNamiasin 1 980asamathematictoolinquantummechanics[1] .In1 993,MendlovicandOzaktasimplementedtheFRTatopticalfieldwhentheystudiedgradientindex (GRIN )fiber[2 ] andappliedthepuremathematicformulatio…  相似文献   

8.
Single-ModeCW532nmOutputof1.3WbyInternalFrequencyDoublingwithTi:MgO:LiNbO_3¥LIJian;WULing-An(InstituteofPhysics,AcademiaSinic?..  相似文献   

9.
No .1Theinsulator metaltransitionandCMReffectinLa2 / 3 Ca1/ 3 MnO3 LiuNing , SunYong , TongWei, ZhengYu heng (5 )…Thenonlinearresponsefunctioninhigh superconductorsandthevortexphasetransitionQiZhi, YinDao le (13)………………AreviewofstudyonMTGYBCObulkandBi 2 2 2 3/Agtapesbymagn…  相似文献   

10.
1 INTROEXPERIMENTExperimentalsetupwasshowninFig .1,exhaustivedescriptionsonthesetupandtheprocessofacquiringdatahasalready giveninrelativedocument[1] ,nowwedoexcessivedescriptionnolonger .2 RESULTANDDISCUSSIONResult:earlierspectraoftheplasmaradiatingwereshow…  相似文献   

11.
1 INTRODUCTIONThecavityquantumelectrodynamics(CQED)effectsintheinteractionofatomwithcavityfieldareprimarilybasedonthestandardJaynes Cummingsmodel(JCM ) [1,2 ] .Thismodeldescribesanatomatrestinteractingwithaconstantelectricfieldwithouttakingintoaccountthemode…  相似文献   

12.
1 Introduction  GrowingcommunicationtrafficdemandsmorewavelengthstobeusedinopticalDWDM(densewavelengthdivisionmultiplexing )systemsandnetworks.OpticalfiberRamanamplifierwithitswideamplificationbandwidthandflexiblecenterwavelengthisthepromisingcandidate[…  相似文献   

13.
A Novel OADM Based on Fiber Gratings   总被引:1,自引:0,他引:1  
1 Introduction  Opticaladd/dropmultiplexer (OADM)isthekeycomponentofopticaltransportnetworks(OTN) .ManyOADMarchitectureshavebeenreported ,suchasthosebasedonwavelengthmultiplexers,arrayedwaveguidgratings(AWG ) ,acousto optictunablefilters (AOTF) ,fiberBragg grati…  相似文献   

14.
1 Introduction  Opticalfastfrequency hopingcode divisionmultiple accesssystems (FFHOCDMA)haverecentlybeen proposedasacandidateforopticallocalareanetworks(LANs) [1,2 ] .Inthisscheme ,FBGsarecodingdevices,whichslicethespectrumoftheincoming pulsetoreflect .Theoutpu…  相似文献   

15.
1 INTRODUCTIONItwasoftenencounteredthationizationofambient gasshouldoccurredwhena plasmawasproducedwithlaserablatingatarget .Manya  相似文献   

16.
1 Introduction  Merocyanine540(MC540),anamphipathicdyethatpreferentiallybindstoleukemiacell,envelopedvirusandcertainvirusinfectedcells[1~3].MC540mediatesthephotodynamickillingofleukemiacells,whereasnormalbonemarrowandbloodcellsarelargelyspared.Ithasbeenusedpre…  相似文献   

17.
1 Introduction  Theopticaladd dropmultiplexer(OADM )isexpectedtoplayanimportantroleinfuturewavelengthdivisionmultiplexed(WDM )ringnetwork .Uptonow ,afewschemesofOADMbasedonwavelengthgratingrouter,opticalswitches,arrayedgratingwaveguideandfiberBragg gratings(…  相似文献   

18.
Vol.18 No .1 Mar.2 0 0 1StudyoftheReactionofPd(OAc) 2 withPPh3inCCl4     ………………………WEIFeng ping ,HUANGYong renandFENGLiang boetal.  ( 1 -5)…………ParamagneticgFactorofZnS :Co2 +Crystal      ……………………………………XieLin hua ,HuPingandZhaoMin guang  ( 7-1 1 )……………………………AStudyoftheChainMotio…  相似文献   

19.
1 Introduction  Steady statephotorefractive (PR)spatialsolitons[1~ 3] havebeeninvestigatedextensivelyinthepastfewyears.Atpresentthesearetwodifferentkindsofsteady statePRsolitons :screening[1 ,2 ] solitonsandphotovoltaic (PV) [3]solitons.Morerecently ,wehaveshowntheo…  相似文献   

20.
1 Introduction  Yb3 dopedfibershavesimpleenergylevelstructure.Theirspecificadvantageshavegraduallybeenfoundsincetheinventionofexcellentpumpsources,e .g.,thehighpowerInGaAslaserdiodes.Whiletheyhavebeenusedmainlyinlasers[1~ 8] soFig.1Absorptionandemissioncross…  相似文献   

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