在纵向合的LNOI/CPS波导中产生太赫兹差异频率:一种分析方法
Optics express
|August 13, 2025
概括
研究人员开发了一种新的太赫兹 (THz) 引导源,使用绝缘体 (LNOI) 和共平线条线 (CPS) 波导上的酸盐. 这种紧的,高效的源可以在芯片上为各种应用程序生成太赫兹.
科学领域:
- 光子学和特拉赫兹技术
- 材料科学 (酸) 材料科学 (酸)
- 电磁学和波导理论
背景情况:
- 当前的太赫兹 (THz) 技术需要紧的,经济高效的,可调节的室温源来广泛应用.
- 在芯片上的整合性和引导波方法为先进的THz源开发提供了一个有前途的平台.
- 在绝缘体 (LNOI) 和共平线条线 (CPS) 波导上酸是集成光子和电子设备的关键组件.
研究的目的:
- 在纵向合的LNOI和CPS波导中分析研究太赫兹差异频率生成.
- 开发一个模型,以高效的光学到特拉赫兹转换在引导波配置.
- 设计和验证一个紧的,芯片上的THz引导源.
主要方法:
- 模拟LNOI中的非线性相互作用作为由于二次非线性易感性而导致的移动波诱导电流密度.
- 应用基于分布式源传输线路理论的半分析方法来计算THz信号功率.
- 使用多层光谱域方法和复杂图像技术计算CPS中的诱导电压.
主要成果:
- 设计了一种满足模态相匹配的引导源结构,以实现高效的3 THz发电.
- 通过分析获得的结果显示与全波模拟有很好的一致性.
- 拟议的模型可以快速设计和优化光到特拉赫兹转换源.
结论:
- 该研究成功地展示了在合的LNOI-CPS波导中THz差异频率生成的分析模型.
- 开发的方法有助于创建紧,高效和可调节的芯片上THz引导源.
- 一般模型适用于广泛的集成光到特拉赫兹转换设备.
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