简介:Anall-solid-statesingle-frequency1064nmlaserwitha100μspulsewidth,500Hzrepetitionrateand700mJsinglepulseenergyisdesignedusingseedinjectionandathree-stagemasteroscillatorpoweramplifier(MOPA)construction.Usingthisasabasis,researchonlong-pulselaserfrequencydoublingiscarriedout.Bydesigningandoptimizingthelithiumtriborate(LBO)crystal,thetheoreticallycalculatedmaximumconversionefficiencyηmaxreaches68%atM2=1,whileηminis33%atM2=3.Generationof212mJpulsesofgreenlightwitharepetitionrateashighas500Hzisobtainedfromafundamentalenergyof700mJ.Theexperimentalconversionefficiencyreaches31%andthepowerstabilityisbetterthan±1%.
简介:Wereportonanall-solid-statehigh-powerquasi-continuousbluelightsourcebythefrequencydoublingofasignalwavefromanopticalparametricoscillator(OPO).A50-mm-longLiB305(LBO)crystalisusedfortheOPO,whichispumpedbyadiode-pumpedNd:YAGgreenlaser(1OkHz,50ns).TunableblueemissioninanewnonlinearcrystalBiB306(BiBO)isobtainedwithawavelengthrangefrom450to495nm.Theaveragepowerofthesignaloutputisashighas9.3Wfrom924to970nm.Themaximumoutputofthebluelaserwiththesecondharmonicwalk-offcompensationis1.3Waveragepowerat470nmfor6.2WofOPOsignallightat940nm.
简介:在纸,我们为Calderon-Zygmundoperator获得珍视向量的不平等,简单地在Herz空间的CZO和弱Herz空间。特别地,我们在L~q上为CZO获得vector-valuedinequalities(R~d,|x|~αdμ)空间与1