镧离子和次甲基蓝掺杂对kdp晶体生长及晶体质量的影响

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1、AbstractKDP(KH2P04)crystalisakindofnon．1inearopticalmaterialwithexcellentcharacter．KDPcrystalistheonlynonlinearcrystalcurrentlyusedforlaserinertialconfinementfusionduetotheirexclusivephysicalproperties．Consideringtheelectro’opticalpropertiesandlargedia

2、meter,highqualityKDPcrystalisoneoftheprimaryopticalcrystalsusedinhigh-powerlasersystems．Therefore，growthoflargediameterandhighqualityKDPcrystalbychanginggrowthparametersandchoosingproperadditiveshasbeentheresearchingfocusathomeandabroadallthewhile．Inth

3、ispaper,thestructure，propertyandapplicationsofKDPcrystalwereintroduced．Theresearchhistoryandactualityaboutinorganicanions，metalcationandorganicadditivewereexpoundedindetail．TheinfluencemechanismofadditivesonKDPcrystalwassummarizedandexplored．KDPcrystal

4、sweregrownbythemethodoftemperaturereduction．GrowthexperimentswerecarriedoutbychangingthesaturationtemperaturesandpHvaluesofKDPgrowthsolutions．TheoptimalsaturationtemperatureandpHvaluewereexplored．Onthisbasis，KDPgrowthexperimentswerecarriedoutbyaddingla

5、nthanonions(Lf+)andorganicdyes(methyleneblue)togrowthsolutions．BycomparingthepurewithLa¨dopedKDPcrystals，resultsshowsthatthedopedofLa”improvesthestabilityoftheKDPgrowthsolution，andreducesdefectsofKDPcrystal．Thetransmittanceoftheprismaticsectionofsample

6、swasmeasuredbyUV．VISSpoctrophotometerinrangesof200-800nm，researchesfoundthatLa3+withlowdopedconcentration(La¨=4x10。mo以0canimprovethetransmittanceofcrystalsintheUVband，andimprovethequalityofcrystals．AstotheKDPcrystaldopedwithmethyleneblue，whentheconcent

7、rationishigh，thestabilityoftheKDPgrowthsolutionisdeclinedinthegrowthprocessofKDP；WemeasuredthecontentofimpuritiesinKDPcrystals，andfoundthatthetotalcontentoftrivalentmetalionsdecreasedwiththeincreaseofdopingconcentration．Itindicatesthatdopedwithmethylen

8、ebluecaneffectivelyinhabittheadsorptionofFe3+，Cd+，A13+intheprismaticsectionofKDPcrystalandweakentheinfluenceoftheimpurityionstotheprismaticsection；ThedopedcrystalstructurewascharacterizedbyXRD，theresultsshowthatdifferentconcentrationsof