高位堿分子態(tài)與堿原子間的碰撞能量轉(zhuǎn)移.pdf

1、新疆大學(xué)碩士學(xué)位論文高位堿分子態(tài)與堿原子間的碰撞能量轉(zhuǎn)移姓名：王淑英申請學(xué)位級別：碩士專業(yè)：理論物理指導(dǎo)教師：張軍沈異凡20060609AbstraetThroughtheexperimentresearchofthecollisionalenergYtransforbetweenthehigh—lyingstateofalkalimoleculesandthegroundstateatoms，wegettheinformationin

2、ordertoascertaintheatommoleculeinteractionpotentialenergyandenergypartition，andtoseeknewlaserworkingenergylevelsBymeansoftheoptical—opticaldoubleresonancetechniquethewholehighhalfwidthoftheabsorptionlineinvolvingnonpredi

3、ssociationlevelhasbeenmeasuredSOthatthetomlradiationrateofahigh—stateofthealkalimoleculescanbeobtainedBytwostepstirringupthealkaliatoms，wecanmeasurethecollisionaltransforrateofthealkaliatominahighexcitationstateandtherat

4、eCOCfficientintheprocessofcollisionReverseenergypoolingWiththedifferentgrotmdstateatomdensitiesandthefluorescenceintensityratiosofthehi【ghexcitationstateatomstothehighlyingstatemolecules，wegetthecollisionalenergytransfer

5、crosssectionsbetweenthehigh—statealkalimoleculesandthegroundstatealkaliatomsChangesofthe1aserinducedpopulationinRbatomicvaporweremonitoredbydecreasingorincreasingthecorrespondingfluorescencesignalsTherateconstantsforthes

6、timulatedemission(je，5Ds／2寸5P3，2)is20108s～Thecrosssectionforthefine—structurechangingcollision(je，5Dsr25Ds：2)is641014cm2InthecollisionalenergytransferprocessCs(6P3／2)(ye，N2)，itispossiblethattheelectronicstatemerelytransf

7、ertothetranslationalenergyforNeHowever，intheN2case，itisimportanttotransfertheelectronicstatetothevibrationalorrotationalenergyUsingstepwiseexcitationofthecesium8SatomiclevenCsVapor，thecrosssectionsforthecollisionaIproces

8、sesof6P5D_6SnL(nL=9S，5F)havebeenmeasuredThecrosssectionson9Sand5Foftheenergytransferprocessrespectivelyare871013cm2and1310’14cm2WestudytheresonanceCXchangecollisionsincesiumvaporbytheoptical—opticaldoubleresonancespectro