強非局域空間光孤子及其相互作用的研究.pdf

1、華南師范大學(xué)碩士學(xué)位論文強非局域空間光孤子及其相互作用的研究姓名：許超彬申請學(xué)位級別：碩士專業(yè)：光學(xué)指導(dǎo)教師：郭旗20050601AbstractInthispaper，discussedistheevolutionandtheinteractionofopticalbea221sinnonlocalKerrmedia，governedbythenonlocalnonlinearSchr5dingerequation(NNLSE)The

2、paperisorganizedasfollows：Chapter1，wepresentanoverviewofrecentadvancesintherese&rchesofoDticalbeampropagatinginnonolocalnonlinearmediaChapter2，wediscusstheevolutionoftheoffwaistincidentGaussianbeaminthenonlocalnmflinearm

3、ediabyuseofthe(11)一dimensionalstronglynonlocalmodelAnexactanalyticalsolutionfortheevolutionisobtained，Wefindthatnomatterhowhighthepoweroftheincidentbeamis，nospatialsolitonwillexistThedefinitionofa“spatialchirp’isgiven，to

4、onrknowledge，forthefirsttimeThephysicaloriginofthephenomenonaboveisthatthedifferentincidentpositioncorrespondstothedifferentspatialchirpChaper3，WensetheSnyderMitchellmodeltoexploretheinteractioninthesym—metricalconfigura

5、tion，aswellasthatoftwosohtonswithdifferentintensitythroughpropercoordinatetransformations，andanalyticalsolutionsareobtainedChapter4，NNLSEissimulatedfortwobeampropagationThecomparisonsofouranalyticalsolutionswithnumerical

6、simulationsoftheNNLSEshowthattheanalyticalsolutionsoreinagreementwiththemlmericalsimulationsThemainachievementofthepaperisthatnomatterhowhighthepoweroftheincidentbeamisnospatialsohtonwillexist，whentheGaussianbeamisoffwai

7、stincidentinthenonlocalnonlinearmediaThedefinitionofa“spatialchirp”isgiven，toonrknowledge，forthefirsttimeThephysicaloriginofthephenomenonaboveisthatthedifferentincidentpositioncorrespondstothedifferentspatialchirpWeriset