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纳米领域抛光解锁后向非线性光的产生在薄膜尼酸盐

Alessandra Sabatti¹, Jost Kellner¹, Robert J Chapman¹

¹Department of Physics, Institute for Quantum Electronics, Optical Nanomaterial Group, ETH Zurich, CH-8093 Zurich, Switzerland.

Nanophotonics (Berlin, Germany)

|December 22, 2025

概括

研究人员证明了薄膜酸 (TFLN) 中可扩展的周期性抛光,具有亚微米域周期. 这一突破为先进的光子应用提供了有效的反向和反向传播的非线性频率转换.

科学领域:

综合光子学综合光子学
非线性光学是一种非线性光学.
材料科学是一种材料科学.

背景情况:

非线性频率转换对于电信,信号处理和计算至关重要.
薄膜酸 (TFLN) 由于其强大的非线性特性,是集成光子学的一个关键平台.
在TFLN中的常规聚合限制了域大小,限制了对特定非线性相互作用的访问.

研究的目的:

为了证明可扩展的周期性抛光在X切割的TFLN与超短的域周期.
实现支持逆向和逆向传播相位匹配的TFLN设备.
在TFLN中探索新的非线性光学相互作用和光子生成.

主要方法:

开发了可扩展的周期抛光技术,用于X切割的TFLN.
取得的域周期最短为215 nm.
用于反向和反向传播的频率转换的制造设备.

主要成果:

经过证明的周期性聚变,域周期低至215 nm.
估计的转换效率为1.474%/W/cm2 (反传播) 和45%/W/cm2 (反向传播).
在两个配置中观察到总频率生成和自发参数向下转换,包括向后传播.

结论:

在TFLN中工程铁电领域几何学的突破.
能够精确控制用于量子应用的光子对生成.
为量子信号处理,计算和计量学的进步铺平了道路.

关键词:

反向传播的波浪可以反向传播.综合光子学综合光子学非线性光学是一种非线性光学.定期进行抛光.薄膜尼酸是酸的一种.

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