飞秒激光脉冲在蓝宝石光纤中超连续辐射的分析

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1、ABSTRACTInrecentyears,laser-matterinteractionhasbeengivenalotofnewcontentbytherapiddevelopmentofultrafastpulsedlasertechnology.Amongthem,anewphysicalphenomenonissupercontinuumradiationgeneration(widespectralrangeoftheopticalradiation)whenthefemtosecondlas

2、erpassinanonlinearmedium.Thispaperdescribesthephenomenonoffemtosecondlaserpulsestoformasuper-continuumradiationinthesapphirefiber,includingthedevelopmentstatusinrecentyears,supercontinuumgeneration,andsomeofthetypical(important)characteristicsapplication.

3、Then,intheory,wemainlyintroducesthemaintheoreticalmechanismofself-phasemodulation,multiphotonionization,plasmadefocusingandstrengthclampedforpropagationofultrashortlaserpulseinatransparentmedium.Intheexperiments,wemeasuredthesupercontinuumspectrumgenerate

4、dinthesapphirefiberbyfemtosecondlaser,andtheeffectofdifferentenergy,differentfiberlengthtosupercontinuumgenerationwereanalyzed.Keywords:femtosecondlaserplasmafilamentsnonlineareffectsupercontinuumsapphirefiber目录摘要ABSTRACT目录第一章绪论...........................

5、...............................................................................................11.1引言...........................................................................................................................11.2飞秒激光产生超连续辐射的研究现状...........

6、.........................................................11.3飞秒激光产生超连续辐射的应用...........................................................................31.3.1光学相干断层扫描.........................................................................................31

7、.3.2大气遥感科学.................................................................................................31.3.3度量学.............................................................................................................41.3.4激光诱导放电..................

8、..............................................................................41.3.5激光诱导击穿光谱（LIBS）.......................................................................51.3.6激光雷达....................................