通过高对比度格子共振器启动的准BIC激光器用于气体检测
Haoran Zhang1, Tao Wang1, Jingyi Tian2
1Engineering Research Center of Smart Microsensors and Microsystems of MOE; and School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, 310018, China.
Nanophotonics (Berlin, Germany)
|December 5, 2024
概括
我们开发了一种新的2D微激光器,使用连续 (BIC) 中的束状态进行超低值激光. 这种BIC激光器在芯片上的气体传感应用中表现出高灵敏度.
科学领域:
- 光子学 是一个光子学.
- 纳米技术纳米技术
- 传感技术 传感技术
背景情况:
- 连续体中的边界状态 (BIC) 提供高Q共振,对激光发展至关重要.
- 微激光器对于紧的光子集成电路至关重要.
- 气体传感需要敏感和选择性的检测方法.
研究的目的:
- 提出和数值研究一个2D微激光器使用BIC.
- 为了证明可见范围内的超低值激光.
- 评估设备在芯片上传感气体的潜力.
主要方法:
- 对2D微激光结构的数值研究,该结构由染料合增益层和高对比度网格组成.
- 通过在 Γ 点部分打破 BIC 来利用准BIC 模式.
- 增益介质的光学送以实现激光.
主要成果:
- 实现了超低的门 (17μJ/cm2) 和狭窄的光线宽度.
- 证明了对环境折射率变化 (5 × 10−4) 的敏感检测.
- 获得了221nm/RIU的批量灵敏度和4420 RIU-1.1的优点数字.
结论:
- 开发的准BIC微激光器可以实现高效的低值激光处理.
- 该设备在气体检测方面表现出色的传感性能.
- 这种超紧的BIC激光器是芯片上气体传感器的有希望的候选者.
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