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A molding method to fabricate the waveguide multilayer card 被引量:1
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作者 ZHOU Wang-ren LIANG Zhong-cheng gu min-fen 《Optoelectronics Letters》 EI 2008年第2期153-154,共2页
Waveguide multilayer optical card (WMOC) is a new kind of three-dimensional storage device. A method of fabricating the WMOC using the molding technique is introduced in this paper. The fabrication of WMOC mainly incl... Waveguide multilayer optical card (WMOC) is a new kind of three-dimensional storage device. A method of fabricating the WMOC using the molding technique is introduced in this paper. The fabrication of WMOC mainly includes data writing with hot embossing method and multilayer bonding with PDMS material. The structure of the WMOC is consisted with Polycarbonate (PC) as the core layer material and Polydimethylsiloxane (PDMS) as cladding layer. The experimental results demonstrate that the molding fabrication method is feasible and effective. 展开更多
关键词 波导 多层卡 制模方法 结构
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Development of the readout system for waveguide multilayer optical card
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作者 gu min-fen LIANG Zhong-cheng +3 位作者 WANG Ren-zhou DONG Xiang-mei ZHANG Pei-ming CHEN Jia-bi 《Optoelectronics Letters》 EI 2008年第2期150-152,共3页
Waveguide multilayer optical card (WMOC) is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of... Waveguide multilayer optical card (WMOC) is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling & processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic (VB) language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor. 展开更多
关键词 读出系统 波导 光学卡 存贮器
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核壳结构镍肼复合物的红外光谱研究 被引量:2
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作者 石昂昂 于洪霞 +2 位作者 顾敏芬 杨忠林 杨雪 《光谱学与光谱分析》 SCIE EI CAS CSCD 北大核心 2020年第10期3136-3140,共5页
核壳结构纳米复合材料是材料领域研究的热点。一方面通过在核材料表面包覆性质较稳定的壳层可以防止核粒子发生物理化学变化,提高核粒子的分散性、稳定性等,另一方面通过内核和壳层材料相互结合共同作用,表现出优于单一纳米粒子的理化... 核壳结构纳米复合材料是材料领域研究的热点。一方面通过在核材料表面包覆性质较稳定的壳层可以防止核粒子发生物理化学变化,提高核粒子的分散性、稳定性等,另一方面通过内核和壳层材料相互结合共同作用,表现出优于单一纳米粒子的理化性能。目前,核壳结构纳米复合材料已经被应用于催化、光化学、电化学、微电子学、微波吸收及药物治疗等领域。以氯化镍和水合肼为主要原料,采用反胶束法制备了镍肼络合物(NHC),并以NHC为核,包覆间苯二酚-甲醛(RF)树脂和二氧化硅(SiO 2),合成核壳结构NHC复合物(NHC@RF,NHC@SiO 2和NHC@RF@SiO 2)。采用透射电子显微镜(TEM)、X射线衍射仪(XRD)、傅里叶变换红外光谱透射法(TR-FTIR)、衰减全反射法(ATR-FTIR)和漫反射法(DRS-FTIR)等测试手段对所得材料进行表征和分析。结果表明:NHC为纳米棒状结构,分散性较好。主要成分除了Ni(N 2H 4)2Cl 2,还含有少量Ni(NH 3)6Cl 2。三种红外测试方法各有特点,都能检测出NHC样品中主要官能团的特征峰;对于核壳结构镍肼复合物,TR-FTIR法采用KBr压片制样过程中可能会引起结构及表面性质的改变,还可能同KBr发生离子交换;ATR-FTIR法制样简单、无需对样品进行预处理,不会对核壳结构样品造成损坏,ATR法侧重于核壳结构外壳表征,可用于定性分析核壳结构包覆情况;DRS-FTIR法与ATR-FTIR一样可以做到无损测量,一般仍需用KBr进行稀释,检测深度及获取到的信号强度介于TR-FTIR与ATR-FTIR方法之间。RF的包覆对NHC的红外特征峰影响不大,但是SiO 2的包覆使N—H的伸缩振动峰红移而弯曲振动峰蓝移,说明SiO 2与N—H键之间发生了相互作用。 展开更多
关键词 镍肼络合物 核壳结构 纳米复合材料 红外光谱
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