激光與物質(zhì)相互作用的熱效應(yīng)研究.pdf

1、Y9墨8S辱5’分類號～一一密級uL)C一一一。編號一一。一一一一_一、，學(xué)位論：迂激光與物質(zhì)相互作用的熱效應(yīng)研究S鼉UdyonthethermaIeffbctinthe；鞠teractionofthelaserradia=ionWithmatter鄧素輝指導(dǎo)教師娉名：陶向陽教授甲請學(xué)位級別：碩士論文提交日期：2006年4月學(xué)位授予單位和日期：2C西師范大學(xué)辭辯委員會主席評閱人江西師范大學(xué)物理與通信電子學(xué)院專業(yè)名稱：理論物理答辯日期：2

2、006年5月日2006年月日：二Co六年四月江匿師范大學(xué)硬士論文Studyonthethemale骶ctintheinteractionofthelaserradiationwithmatterAbstractThethcrmalanalysisoftheinteractiDnofthelaserwiththematterisoneofthe、mostimportamphysicsphenomenaafterthelaserirradi

3、atesthetafgctsThe1ase卜inducedheatiI培willlcadtothetemperatureraiseofthematerial，theheatdi脅sion，heate)(pansionandthethermalstressdamageIfthcl舾ercne唱yisaccumulatederloughinthemetalorthepl笛ticmaterial，somepartsonthesurfaceof

4、thematerialwillmenoreVaporateT11uswecalltaketheadvalltageofthehserIodnlltheh01es，cut，abhtethematerialands0onThereforethestudyofthethermale骶ctduringthcinteractionofthelaserradiationwithmatterfor潞thcbasisofthelaserpmcessin

5、g，thetcchnologyof1ascrheattreatmentandthelaserdamageandsoonF0rsometypicalproblemsonlaserheating，thethermalmodelshaVebeenbuiltandlheappr0】dmateanalyticale)中ressionstotheheatdi丘usionequationhaVebeenobtainedbasedonsomecerta

6、inassumptjonsandtheboundaryconditionsButtheclosed—formsolutionsareon】y印plicabletothesimplersituationsandtheresultsobtaincdarealsoapproximateThenumericalsimulationismoreflexibleandisabletodealwiththemorecomplicatedproblem

7、sAslong孫thephysicalmodelsdescribingtheproce豁oftheablationarereasonable，wecaIlgctthe印propriateresultsInthispaper，thenumericalcakulationsofthetemperatureraiscinthephotoelectricdetectorsilluminatedbythebngpu】seslaser卸ddllri

8、ngablationonmetalundertheunr勰honpulses1aserafeseparatelyperformedourcentralworkandsomeconclusi0I岱areobtainedasfo玎ows：1、Inc0Ilsiderationofthemultilayeredconstlllctionofthedetectofsandbasedonlhelhermalconductionequation，th

9、etemperatureraisedistributionofanInsb(PV)detectorandaHgCd’Ib(PC)det∞forifTadiatedbycontinuouslaserpulsesarebothnumericallycalculatedusinga1DmodelofheatconductionandbymeansofIheimplicitschemesdi婦ferenceexpression’nlerclat