| 芯片级腔光力传感器谐振腔中的可控光机械耦合 |
| Controllable optomechanical coupling in chip-scale cavity optomechanical sensor resonator |
| 投稿时间：2024-11-22 修订日期：2024-12-25 |
| HTML 查看/发表评论 下载PDF阅读器 |
| 中文摘要: |
| 腔光力传感器作为科技交叉领域的研究热点，其测量分辨率的提升对多种应用场景至关重要。本研究着眼于通过调节腔光力传感器中耦合光纤状态来改变腔内光场模态体积，实现光机械耦合的可控性，进而达到光机械耦合的强互锁状态。在二维光子晶体构成的芯片级腔光力传感器谐振腔系统中，我们成功地展示了可控光机械耦合诱导的机械品质因数（Q值）提升和系统底噪的抑制。实验结果表明，在光机械耦合实现强互锁状态下，机械Q值相比弱互锁阶段提升了约10倍，系统底噪得到了约26 dB的显著降低。此外，基于该方案的腔光力加速度传感器在6 kHz的加速度驱动下，实现了高达126.58 mV/g的灵敏度。这一成果不仅证实了可控光机械耦合在增强机械Q值和降低系统底噪方面的潜力，而且为腔光力系统的设计和应用提供了新的思路，对光子学和微纳机械系统领域的技术发展具有重要的推动作用。 |
| 英文摘要: |
| Cavity optomechanical sensors, a focal point at the intersection of technology and science, are pivotal for improving sensing resolution across diverse applications. This research concentrates on modulating the intracavity optical field mode volume by adjusting the state of optical fiber coupling to achieve controllable optomechanical coupling, leading to a strong coupling lock. Within a chip-scale optomechanical sensor resonator system constructed from two-dimensional photonic crystals, we successfully demonstrated the enhancement of mechanical quality factor (Q-factor) and the suppression of system noise through controllable optomechanical coupling. Experimental outcomes indicate that in the strong optomechanical coupling lock state, the mechanical Q-factor increased by approximately 10 times compared to the weak coupling state, and system noise was significantly reduced by about 26 dB. Moreover, the optomechanical accelerometer sensor, based on this scheme, achieved a sensitivity of 126.58 mV/g under a 6 kHz acceleration drive. These findings not only validate the potential of controllable optomechanical coupling in enhancing mechanical Q-factor and reducing system noise but also offer new perspectives for the design and application of optomechanical systems, significantly advancing the technological development in photonic and micro-nano mechanical systems. |
|
| 中文关键词: 腔光力系统 光机械耦合 二维光子晶体 腔光力传感器 机械品质因数 |
| 英文关键词:optomechanical systems optomechanical coupling two-dimensional photonic crystals cavity optomechanical sensors mechanical quality factor |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
| DOI： |
| 引用本文： |
| 关闭 |
