低损耗等离子体辅助电光调制器
Christian Haffner1, Daniel Chelladurai2, Yuriy Fedoryshyn2
1ETH Zurich, Institute of Electromagnetic Fields (IEF), Zurich, Switzerland. haffnerc@ethz.ch.
Nature
|April 27, 2018
概括
研究人员使用共振切换绕过了等离子损失, 使得光学设备更快,更小. 这一突破克服了传感和通信领域的重要障碍.
科学领域:
- 塑制剂
- 纳米光子学
- 光学设备工程
背景情况:
- 塑学研究的是光物质与金属表面上的电子运动的相互作用,长期以来一直以低波长的光学设备为目标.
- 由于电子运动造成的欧姆损失会产生热量,限制了等离子体在传感和信息技术中的应用.
- 一个普遍的观点认为等离子体过于有损于实际实施.
研究的目的:
- 为了克服等离子器件的欧姆损失的局限性.
- 展示一种在等离子系统中绕过热生成的新方法.
- 实现用于先进应用的实用亚波长光学设备.
主要方法:
- 引入了"共振切换"以控制光与损失表面等离子极子的合.
- 使用破坏性干扰来防止"开启"状态下的光合 (共振外).
- 制造并测试了等离子电光环调制器以验证方法.
主要成果:
- 通过共振切换证明了欧姆损失的绕过.
- 通过分秒切换实现了在开启和关闭状态之间很大的灭绝比率.
- 实验验证证了芯片上的低光损耗,高速运行 (> 100 GHz),能源效率和热稳定性.
结论:
- 通过减轻损失,等离子体可用于高性能应用.
- 这种共振切换技术使得快速,紧的芯片传感和通信技术的发展成为可能.
- 这项工作为未来信息和传感平台的整合开辟了新的途径.
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