Optimization and characterization of the guest-host polyetherketone polymer films for application in integrated optical devices

In order to optimize the loading of 3-(1, 1-dicyanothenyl)-1-phenyl-4, 5-dihydro-1H-pryazole (DCNP) in polyetherketone (PEK-c) guest-host polymer films, ten kinds of DCNP/PEK-c thin films, in which the weight per cent of DCNP changes from 5 to 50, were prepared. Their second-order nonlinear optical coefficients chi(33)((2)) at 1064 nm were measured by Using Maker fringe method after poling under the optimal poling condition. Their optical waveguide transmission losses were measured at 632.8 nm. Optimal weight per cent of the chromophore for the DCNP/PEK-c guest-host polymer system has been determined as about 20 for use in the integrated optical devices.

神经记录用硅基多通道微电极探针的设计与制造

为了从中枢神经系统记录电信号，半导体加工技术已经被用于微电极探针的制造．介绍了一种硅基探针的设计和制造工艺流程．我们已经制造出15 μm厚，3 mn长,100μm宽的记录用探针，每根探针含有7个记录点，间隔120 μm.在制造过程中使用微机械系统(MEMS)工艺中常用的硅表面微加工工艺:等离子增强化学气相淀积(PECVD)，感应耦合等离子刻蚀(ICP)以及硅的各向异性刻蚀等．测试结果给出了探针的强度和阻抗特性．

离子色谱分析在黄土和粉尘研究中的应用

IEECAS SKLLQG

陕西秦岭翠华山泉水化学成分研究

IEECAS SKLLQG