| 激光色散光谱高温气体传感技术研究进展 |
| Advances in high-temperature gas sensing techniques using laser dispersion spectroscopy |
| 投稿时间：2025-04-01 修订日期：2025-04-22 |
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| 中文摘要: |
| 激光色散光谱（Laser Dispersion Spectroscopy, LDS）作为一种先进的光谱类气体检测技术，凭借其宽动态范围检测特性及对光功率波动的强免疫特性，已在痕量气体检测和燃烧诊断领域获得极大关注，并在基础科学研究和工业应用中逐渐展现出重要价值。近年来，国内外科研人员持续致力于发展新的检测方法和提升该技术的测量性能，以满足不同应用场景的测试需求，并取得了诸多突破性进展。本文从开展激光色散光谱技术研究的动机出发，系统介绍了基本光谱原理，构建了理论分析框架；重点阐述了外差相敏色散光谱技术和啁啾色散光谱技术的特征与实现方法，并探讨了免标定数学物理模型的构建方法。通过梳理近十年该技术在火焰诊断、工业烟气监测、大气温室气体探测及同位素分析等典型场景的应用案例，揭示了不同应用维度的技术需求特征。最后，针对现有检测灵敏度有限、测量系统复杂等瓶颈问题，从基础研究和应用需求两个维度展望了未来发展方向。本综述为LDS技术的理论深化和工程化应用提供了系统化参考。 |
| 英文摘要: |
| Laser dispersion spectroscopy (LDS) is an advanced laser-based spectroscopic technique for gas sensing with a broad dynamic range and high immunity to optical power fluctuations. It has attracted considerable attention in trace gas detection and combustion diagnostics, and is increasingly demonstrating significant value in fundamental research and industrial applications. In recent years, researchers worldwide have devoted sustained efforts to developing new detection methods and improving the performance of LDS to meet the demands of diverse application scenarios, yielding numerous breakthrough advancements. This review systematically introduces the fundamental spectroscopic principles of LDS and establishes a theoretical analysis framework. It highlights the key features and implementation methods of heterodyne phase-sensitive dispersion spectroscopy (HPSDS) and chirped laser dispersion spectroscopy (CLaDS), and explores approaches for constructing calibration-free models. By examining representative LDS applications from the past decade (including flame diagnostics, industrial flue gas monitoring, atmospheric greenhouse gas detection, and isotope analysis), this review elucidates the distinct technical requirements of these application domains. Finally, in light of current challenges such as limited detection sensitivity and complex system configurations, future development directions are discussed from both fundamental research and practical application perspectives. This review serves as a systematic reference for advancing the theoretical foundations and engineering applications of LDS. |
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| 中文关键词: 激光色散光谱技术 相位检测 免标定测量 燃烧诊断 痕量气体检测 |
| 英文关键词:laser dispersion spectroscopy phase detection calibration-free measurement combustion diagnostics trace gas sensing |
| 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）(5247061010，52106221)；中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室开放基金项目（No. SKLA02022001A05） |
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