低波长直径的二氧化线用于低损耗的光学波导
Limin Tong1, Rafael R Gattass, Jonathan B Ashcom
1Department of Physics and Division of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.
Nature
|December 20, 2003
概括
研究人员开发了低波长直径的二氧化线,用于低损耗的光学波导. 这些原子光滑,均的电线允许单模式操作,非常适合微光子设备.
科学领域:
- 光子学是指光子学的使用方法.
- 材料科学 材料科学 材料科学
- 光学工程是指光学工程.
背景情况:
- 波导对于光通信和传感器至关重要.
- 由于表面粗性和均性要求,制造低损耗,低波长直径波导具有挑战性.
研究的目的:
- 报告用于低损耗光学波导的亚波长直径二氧化线的制造.
- 证明它们适用于可见到近红外光谱范围的适用性.
主要方法:
- 采用两步绘制工艺,制造出独立的电线.
- 该工艺实现了直径低至50纳米的原子级表面光滑和均.
主要成果:
- 制造的二氧化线的直径只有50纳米.
- 这些电线证明了原子层面的表面光滑性和均直径.
- 实现了低光学损失 (<0.1 dB mm-1) 和单模式操作.
- 通过光学 evanescent 合,可以将光线合到电线中.
结论:
- 低波长直径的二氧化线是可行的低损耗光学波导.
- 这些电线是未来微光子设备具有亚波长结构的有希望的构建块.
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