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连续波第二和生成的绿色光周期性极点的薄膜坦酸中

Haiwei Chen, Xinyu Zhang, Zhilin Ye

|February 14, 2025

概括

薄膜坦酸盐 (TFLT) 波导通过频率翻倍有效地产生可见绿色激光. 这项研究证明了TFLT.

科学领域:

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

背景情况:

薄膜坦酸盐 (TFLT) 由于其较大的二次非线性,对非线性光学具有前景.
在TFLT中减少光反射效应有利于稳定的激光生成.

研究的目的:

设计和制造一个周期极点的TFLT波导.
为了实现近红外激光的高效频率翻倍,用于可见光生成.

主要方法:

制造一个周期极点的TFLT波导.
1064nm近红外激光器的频率翻倍.
生成的第二和绿光的特征.

主要成果:

连续波1.87mW第二和绿光成功生成.
实现了大约11.7%的高非线性转换效率.
TFLT波导显示了狭窄的波长接受带宽和稳定的可见输出.

结论:

在非线性频率转换中,定期极化的TFLT波导是有效的.
在需要可见光生成的集成光子应用中,TFLT是一种可行的材料.
这项工作支持TFLT在非线性集成光子学中的未来应用.

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P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...