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Di-block co-polymer derived nanoporous polymer liquid corewaveguides

机译:双嵌段共聚物衍生的纳米多孔聚合物液芯 r n波导

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Nanoporous liquid core waveguides are fabricated by selectively UV modifying a nanoporous polymer. The starting point is a diblock polymer where 1,2-polybutadiene (PB) molecules are bound to PDMS. When the PB is cross linked it self-assembles into PB with a network of 14 nm diameter PDMS filled pores. When the PDMS is etched, the hydrophobic PB is left with a porosity of 44%. The polymer is subsequently UV exposed through a shadow mask. This renders the exposed part hydrophilic, making it possible for water to infiltrate these areas. Water infiltration raises the refractive index, thus forming a liquid core waveguide. Here we present both the fabrication scheme and characterization results for the waveguides.
机译:纳米孔液体芯波导是通过选择性地紫外线改性纳米孔聚合物而制成的。起点是二嵌段聚合物,其中1,2-聚丁二烯(PB)分子与PDMS结合。当PB交联时,它会通过直径为14 nm的PDMS填充孔网络自组装成PB。蚀刻PDMS时,疏水性PB的孔隙率为44%。随后将该聚合物通过荫罩紫外线曝光。这使暴露的部分具有亲水性,从而使水可能渗入这些区域。水渗透增加折射率,从而形成液芯波导。在这里,我们介绍了波导的制造方案和表征结果。

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