分枝铜纳米线的近红外偏光特性  

Polarization Properties of the Branched Cu Nanowires in the Near Infrared Region

作　　者：苏学军[1] 张勇[1] 张立春[1] 李少兰[2] 

机构地区：[1]海军航空工程学院,山东烟台264001 [2]鲁东大学学报编辑部,山东烟台264025

出　　处：《新技术新工艺》2008年第9期64-66,共3页New Technology & New Process

基　　金：国家高技术研究发展计划(863计划;2005AA842043)

摘　　要：利用2次阳极氧化法制备了具有分枝结构的多孔铝模板,并在该模板中合成了Cu纳米线。多孔铝模板的上下表面和复合结构的侧面SEM形貌表明,我们制备出了具有分枝结构的多孔铝模板以及Y形分枝状Cu纳米线。测量了样品的透射光谱和偏振光谱,试验发现,具有分枝结构的多孔铝模板在近红外光区的透射率达到了90%,可以作为近红外偏振器件的模板;含Y形分枝状Cu纳米线结构多孔铝膜在近红外光区具有较高的透射率和较好的偏振性能,本试验中得到了15～18dB的消光比以及0.1～0.3dB的低插入损耗。The porous anodic alumina templates with branches structure had fabricated by the two-step anodic oxidation processes,and the Y-branched Cu nanowires was synthesized in the templates.The SEM image of the upside and downside templates and the cross-section of the samples indicated that the micropolarizer of PAA with Y-branched Cu nanowires has been obtained.The transmission spectrum and the polarization spectrum of the samples are measured.The results show that PAA films with Y-branched Cu nanowires have better transmittance reaching 90% in the near infrared region,hence,it can be taken as a template of polarizer in the near infrared region;the porous alumina films with Y-branched Cu nanowires have better transmittance in the near infrared region.An extinction ratio of 15 to 18 dB and an insertion loss of 0.1 to 0.4 dB can be obtained in the experiment.

关 键 词：多孔铝 微偏振器 透射率 消光比 插入损耗 

分 类 号：O436[机械工程—光学工程] O646[理学—光学]