High sensitive detection of atmospheric methane using infrared laser absorption spectroscopy

机译：使用红外激光吸收光谱法高敏感检测大气甲烷

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Methane (CH_4), a key greenhouse by influencing tropospheric ozone (O_3) and stratospheric water vapor (H_2O),plays an important role on the process of global warming and climate change. In this paper, we report on thedevelopment of a gas sensing technique based on high sensitive tunable diode laser absorption spectroscopy(TDLAS). A room-temperature distributed-feedback (DFB) diode laser near 1653 nm is used to excite therotational-vibrational absorption line of CH_4 molecule. Direct absorption spectroscopy and wavelength modulationspectroscopy were used for investigating methane molecular line parameters and sensing gas concentration,respectively. Moreover, potential strategies for sensitivity improvement are also discussed.

机译：甲烷（CH_4），通过影响对流层臭氧（O_3）和平流层水蒸气（H_2O），对全球变暖和气候变化的过程起着重要作用。在本文中，我们报告了一种基于高敏调子二极管激光吸收光谱的气体传感技术的开发（TDLA）。室温分布式反馈（DFB）二极管激光器靠近1653 nm，用于激发CH_4分子的旋转振动吸收线。直接吸收光谱和波长调制光谱学用于研究甲烷分子线参数和感应气体浓度，分别。此外，还讨论了敏感性改进的潜在策略。

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《National Conference on Laser Technology and Optoelectronics》|2019年|1 CD-ROM|共8页
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Jian Sang; Xiaoyun Yang; Tianbo He; Jingsong Li;
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1. Highly sensitive detection of methane by near-infrared laser absorption spectroscopy using a compact dense-pattern multipass cell [J] . Kun Liu, Lei Wang, Tu Tan, Sensors and Actuators . 2015,第deca期

机译：使用紧凑型密集模式多通池的近红外激光吸收光谱法高灵敏度检测甲烷
2. Sensitive Detection of Methane Using Tunable Multimode Diode Laser Absorption Spectroscopy at 1.675 mu m [J] . Gao G., Wang M., Cai T. Journal of Applied Spectroscopy . 2016,第5期

机译：使用可调多模二极管激光吸收光谱仪在1.675μm处灵敏地检测甲烷
3. Ground-level concentrations of atmospheric methane in southwest Greenland evaluated using open-path laser spectroscopy and cavity-enhanced absorption spectroscopy [J] . Webster Kevin D., White Jeffrey R., Pratt Lisa M. Arctic, antarctic, and alpine research . 2015,第4期

机译：使用开路激光光谱和腔增强吸收光谱法评估格陵兰西南部大气中甲烷的地面浓度
4. High sensitive detection of atmospheric methane using infrared laser absorption spectroscopy [C] . Jian Sang, Xiaoyun Yang, Tianbo He, National Conference on Laser Technology and Optoelectronics;Society of Photo-Optical Instrumentation Engineers . 2019

机译：使用红外激光吸收光谱法高灵敏度检测大气中的甲烷
5. Sensitive Detection of Atmospheric Methane and Nitrous Oxide Using Higher Harmonic Wavelength Modulation Spectroscopy [D] . ?Hlaing, May Hnin 2020

机译：大气甲烷和氧化亚氮的灵敏度检测使用较高的谐波波长调制光谱
6. A Sensitive Carbon Monoxide Sensor Based on Photoacoustic Spectroscopy with a 2.3 μm Mid-Infrared High-Power Laser and Enhanced Gas Absorption [O] . Shunda Qiao, Yufei Ma, Ying He, 2019

机译：基于光声光谱技术的敏感一氧化碳传感器配备2.3μm中红外高功率激光并增强了气体吸收
7. Ground-Level Concentrations of Atmospheric Methane in Southwest Greenland Evaluated Using Open-Path Laser Spectroscopy and Cavity-Enhanced Absorption Spectroscopy [O] . Kevin D. Webster, Jeffrey R. White, Lisa M. Pratt 2015

机译：使用开放式激光光谱和腔增强的吸收光谱评估西南格陵兰大气甲烷的地层浓度

High sensitive detection of atmospheric methane using infrared laser absorption spectroscopy

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