均三嗪類二階非線性光學(xué)生色團(tuán)分子的合成、測試及理論研究.pdf

1、上海交通大學(xué)碩士學(xué)位論文均三嗪類二階非線性光學(xué)生色團(tuán)分子的合成、測試及理論研究姓名：項良申請學(xué)位級別：碩士專業(yè)：應(yīng)用化學(xué)指導(dǎo)教師：劉燕剛2002.1.1_。__?！?。?！馹_。__________。_。?！瘛?。_。。_。。__。_。。__’?！瘛?。。?！瘛?。?！瘛?。?！??！虾＝煌ù髮W(xué)碩士學(xué)位論文THEORETICALANDEXPERIMENTALSTUDYOFSTRIAZINEDER【、，ATI

2、VESASNOVELSECOND—ORDERNONLINEAR0PTICALCHROMOPHORESABSTRACTSecondordernonlinearopticalmaterialsareofgreatimportancein也eapplicationsoflasertechnologyandopticalinformationprocessingSince1970sawidevarietyoforganicconj‘ugated

3、chromophoreshavebeeninvestigatedboth廿leoreticallyandexperimentallyforlargeopticalnonlinearitiesRecentlyattentionhasbeenfocusedonstriazinederivativesasnovelseCOn山ordernonlinearoDticalchromophoresbecausethesecompoundsmayex

4、hibitgoodtransparency，highthermalstabilityandlargenonlinearitysimultaneouslyIn廿1ispaperstriazinederivativesweretheoreticallyinvestigatedand也reenovelkindsofchromophorescontainingstriazinegroupweredescribedBasedOnthecalcul

5、atedresults，也emolecularhypsochromiceffect，substituenteffectandaddingeffectofmolecularnonlinearityweresystematicallystudiedItcanbeinferredfromthecalculationthatt11emolecularsecondorderpolarizabilitieswereobviouslyimproved

6、comparedtotheirPnitroanilineprecursorsMoreover，theUVabsorptionwavelengthsofthesechromophoresarelowerthan400nm，whichindicatesthattheyaregoodcandidatesfortheapplicationoffrequencydoublingdevicesAccordingtotheresultsoftheor

7、eticalcalculation，9chromophoresweresynthesizedandthencharacterizedTheirsecondordernonlinearopticalcoefficientsweremeasuredwithsolvatochromicmethodand也ecorrespondingmodelwaspresented也ereafterOnthebasisofthetheoreticalande