Mode division multiplexed holography by out-of-plane scattering of plasmon/guided modes

We design and demonstrate a type of multiplexed hologram by nanoscatterers inside a dielectric-loaded plasmonic waveguide with guided-wave illuminations. The mode division multiplexed hologram(MDMH) is fulfilled by the scattering of guided waves to free space with respect to different modes. According to different mode numbers, these guided modes have different responses to the multiplexed hologram, and then give rise to different holographic images in reconstructions. In experiments, we show two kinds of MDMHs based on TM_0∕TE_0 and TE_0∕TE_1 modes as examples. Our approach could enrich the holography method that favors on-chip integration.     

第一台真空内扭摆磁铁的设计与研制

主要介绍了北京正负电子对撞机上为提高同步辐射光源性能而设计建造的第一台真空内扭摆磁铁的概况,论述了真空内扭摆磁铁的设计要求和参数,以及研制过程中的关键技术和难度,并且给出了相应的磁场测量结果     

多极永磁扭摆磁铁的设计与研制

简要介绍了在北京正负电子对撞机上为提高同步辐射光源性能,设计和研制完成的两台永磁扭摆磁铁的概况,给出了相应的设计参数和机械结构照片,同时也给出了扭摆磁铁的光谱特性.