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一个具有极端介电束的纳米激光器

Meng Xiong^1,2, Yi Yu^1,2, Yury Berdnikov¹

¹Department of Electrical and Photonics Engineering, Technical University of Denmark, Ørsteds Plads 345A, DK-2800 Lyngby, Denmark.

Science advances

|December 17, 2025

概括

研究人员开发了一种新的介电纳米激光器,可以限制光和载体. 这一突破使室温连续波激光具有较低的值,通过增强光物相互作用.

科学领域:

光学和光子学在光学和光子学.
材料科学材料科学材料科学
量子电子学量子电子学

背景情况:

等离子体结构可以限制光线,但会产生欧姆损失.
介电纳米结构提供强烈的光定位,没有金属损失.
以前的研究将光学模式体积最小化,忽视了光物质相互作用.

研究的目的:

为了演示一个纳米激光平台,可将光子和激发载体同定位.
为了实现次衍射有限模式体积和次波长载波体积.
为了增强光物质相互作用以提高激光性能.

主要方法:

一个介电纳米桥结构的制造.
实现极端的光和物质的介电束.
抑制载体表面的重组.

主要成果:

在纳米桥内证明了光子和载体的局部化.
观察到模式场和载体分布之间存在强烈的相关性.
在室温下实现了连续波激光,并且降低了值.

结论:

介电纳米激光平台通过极端限制增强了光物质相互作用.
这种方法可以实现高效的室温操作和低激光值.
相互作用体积的概念概括了活性介质的模式体积.

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