低光启动器用于40nm以下结构的光学3D光刻
Georgii Gvindzhiliia1, Dmitry Sivun2, Christoph Naderer2
1Institute of Applied Physics, Johannes Kepler University Linz, 4040 Linz, Austria.
ACS applied optical materials
|May 31, 2023
概括
米克勒的乙基 (MEK) 是一个新的启动器,用于200纳米以下的3D光刻. MEK使低自光纳米结构成为可能,非常适合生理学研究和多色显微镜应用.
科学领域:
- 光学是什么?光学是什么?
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
背景情况:
- 刺激发射耗尽 (STED) 显微镜已经使得分衍射极限成像成为可能.
- STED原则启发了微差别光学光刻法,用于创建纳米级结构.
- 极端聚合启动器的有限选择限制了STED启发的光刻画.
研究的目的:
- 介绍米切勒的乙基 (MEK) 作为STED灵感光刻的新型启动器.
- 评估MEK的表现,重点关注自流体和可实现的分辨率.
- 证明MEK适用于需要低自光度的应用,例如生理学研究.
主要方法:
- 利用MEK作为STED启发的光刻画中的激进聚合起始剂.
- 研究了MEK编写的纳米结构的自光特性.
- 采用660nm激光来通过短暂状态吸收来控制聚合.
- 标志着制造的纳米结构的侧向和轴向分辨率.
主要成果:
- 与DETC等常规启动器相比,MEK编写的纳米结构表现出明显较低的自光.
- MEK允许在多色光显微镜中使用绿色发射通道.
- 使用660nm激光消耗可以有效地停止聚合.
- 在横向和轴向尺寸中,实现的特征尺寸降至大约40nm.
结论:
- MEK是STED启发的光刻的有前途的开端,提供低自发光.
- 由于MEK的特性,它非常适合在生理学研究中制造蛋白质或细胞支架.
- 低于40nm的分辨率可以通过MEK和短暂状态吸收枯竭实现,克服了以前的限制.
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