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相关概念视频

Step-Growth Polymerization: Overview01:03

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Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
Many natural and synthetic polymers are produced by...
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Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.
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结合一个和两个光子聚合,以加速高性能 (3 + 1) D光子集成.

Adrià Grabulosa1, Johnny Moughames1, Xavier Porte1

  • 1FEMTO-ST/Optics Department, UMR CNRS 6174, University Bourgogne Franche-Comté, 15B avenue des Montboucons, Besançon Cedex, 25030, France.

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研究人员开发了一种新的3D打印方法,将一光子和两光子聚合物结合起来,以更快地制造集成光子电路. 这种技术显著提高了光学限制,并减少了先进电子设备的制造时间.

关键词:
(3 + 1) D闪光打印方式打印.一个光子聚合 (OPP)单模波导是一种单模波导.两个光子聚合 (TPP)超快的3D增材制造超快的3D增材制造

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科学领域:

  • 光电学和光子学的光电子学和光子学.
  • 材料科学与工程 材料科学与工程
  • 增材制造 增材制造 增材制造

背景情况:

  • 高性能电子集成面临由于二维光刻和散热挑战的局限性.
  • 三维 (3D) 光子集成对于可扩展,特定应用的集成电路,特别是神经网络至关重要.
  • 直接激光写作,特别是双光子聚合 (TPP),是一种有前途的CMOS兼容技术,用于高分辨率3D光子集成.

研究的目的:

  • 通过结合一光子聚合 (OPP) 和TPP,开发一种新的,加速的3D光子集成制造工艺.
  • 为了增强光学限制,并减少3D光子电路的制造时间.
  • 以证明使用新方法制造的波导的性能和稳定性.

主要方法:

  • 引入了混合 (3 + 1) D"闪光"TPP技术,将波导核心和支结构的 femtosecond TPP 与被动体积的紫外线启动的 OPP 结合起来.
  • 在TPP期间优化语音间距,以实现平滑的界面 (核心) 和快速打印 (支).
  • 利用紫外线覆盖辐射,快速聚合整个芯片的被动体积,将制造时间与体积大小脱.

主要成果:

  • 成功制造了直立单模波导,长度高达6毫米,数值孔径 (NA) 为0.16.
  • 实现了低的注入损失 (-0.26 dB) 和传播损失 (-660 nm的-1.36 dB/mm),与光子学相似.
  • 经过证明的长期光学性能稳定性 (>3000小时印刷后) 和操作稳定性 (600小时连续使用).

结论:

  • 结合的OPP和TPP方法显著加速3D光子电路的制造,同时改善光学封闭.
  • 制造的波导表现出高性能指标和优良的长期稳定性,适合先进的光子应用.
  • 这种方法为实现神经网络等新兴技术的复杂3D集成光子设备提供了可扩展和高效的途径.