简介：Anewpolarizationgatingisdemonstratedbyourprinciple-of-proofexperiment,whichistheoreticallyproposedtogeneratetheisolatedordoubleattosecondpulseswiththemulti-cycledrivinglaserpulseinthepreviouswork[OpticsExpress.20,5196(2012)].Intheexperiment,thepolarizationgatingisformedbytwoorthogonally-polarizedlinearlychirpedmulti-cyclelaserpulses,andthespectralbandwidthsoftheharmonicsarebroadenedbymorethantwotimes,whichagreewiththeprevioustheoreticalwork.

简介：1SignificanceofAllSolidStateLaser(DPL)TechnologyinFieldofLaserBecauseoftheadvantagesofhighconversionefficiency,goodbeamquality,smallsizeandlightweight,DPLbecomesthehotspotandpriorityofdevelopmentoflasertechnology.Itmaybethemainbodyoflaserinthefutureandreplacegaslaserandliquidlaser.Itisagreatrevolutionoflasertechnology.ThedevelopedcountriesvieindevelopingDPL.Chinahasachievedgreatsuccessinthisfield,butthereisawidegapbetweenthedevelopedcountriesandus.Weshouldattachgreatimportancetoit.

简介：Anewtechnologyoflightninglocationisdescribed,whichisbasedondetectingthestateofpolarization(SOP)fluctuationofthelaserlightintheopticgroundwire(OPGW).Comparedwiththeconventionallightninglocationmethod,thenewmethodismoreaccurate,morestable,andcheaper.TheoriesofStokesparametersandPoincaresphereareintroducedtoanalyzetheSOPatthelightningstrikepoint.ItcanbeconcludedthatalthoughtheinitialpointsofSOPonthePoincarespherearerandom,theSOPfluctuationgeneratedbylightningstrikecanstillbeaccuratelyidentifiedbydetectingthevelocityofpolarizationmotion.Anewalgorithmtoquantifythevelocityisalsointroduced.

简介：Toachievelowerassemblydelayatopticalburstswitchingedgenode,thispaperproposesanapproachcalledcurrentweightlengthprediction(CWLP)toimproveexistingestimatemechanisminburstassembly.isintroducedtomakeadynamictradeoffbetweenthecurrentandpasttrafficunderdifferentoffsettime.SimulationresultsshowthatCWLPcanachieveasignificantimprovementintermsoftrafficestimationinvariousoffsettimeandofferedload.

简介：Asecondgenerationsolaradaptiveoptics(AO)systemisbuiltandinstalledatthe1-mNewVacuumSolarTelescope(NVST)oftheFuxianSolarObservatory(FSO)in2015.TheAOhigh-ordercorrectionsystemconsistsofa151-elementdeformablemirror(DM),acorrelatingShack–Hartmann(SH)wavefrontsensor(WFS)witha3500Hzframerate,andareal-timecontroller.ThesystemsawfirstlightonMar.16,2015.Thesimultaneoushigh-resolutionphotosphereandchromosphereimageswithAOareobtained.Theon-skyobservationalresultsshowthatthecontrastandresolutionoftheimagesareapparentlyimprovedafterthewavefrontcorrectionbyAO.

简介：Squeezedstateoflightexploresanewerainnoiselesscommunicationanddataprocessingrecentlybreakingthequantumlimitofnoise.Weproposeanewmechanismofmodulatinganamplitude-squeezedsignalwiththeinstantaneousintensityvariationofacoherentsignal.Themodulatingsignalisacoherentlightwheretheamplitude-squeezedlighttakestheroleofacarriersignal.

简介：Totalcrosssections(TCSs)ofelectronsscatteringfromtriatomicmoleculesovertheenergyrangefrom30to5000eVareinvestigatedemployinganewsemi-empiricalformula.TheTCSsofelectronsscatteringfromtriatomicmoleculesSO2,NO2,andCO2arecalculated.ThequantitativeTCSsareingoodagreementwiththoseobtainedbyexperiments.Itisshownthattheresultsderivedfromthesemi-empiricalformulaaremuchclosertothemeasurementsthanothercalculations.