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引用本文的文献

1
Assessment of the precision, bias and numerical correlation of fitted parameters obtained by multi-spectrum fits of the Hartmann-Tran line profile to simulated absorption spectra.通过将哈特曼 - 特兰线轮廓对模拟吸收光谱进行多光谱拟合所获得的拟合参数的精度、偏差和数值相关性评估。
J Quant Spectrosc Radiat Transf. 2022 Apr;280. doi: 10.1016/j.jqsrt.2022.108100.

本文引用的文献

1
Twenty-Five-Fold Reduction in Measurement Uncertainty for a Molecular Line Intensity.分子谱线强度测量不确定度降低 25 倍。
Phys Rev Lett. 2019 Jul 26;123(4):043001. doi: 10.1103/PhysRevLett.123.043001.
2
Prediction of line shape parameters and their temperature dependences for CO-N using molecular dynamics simulations.使用分子动力学模拟预测 CO-N 的谱线形状参数及其与温度的关系。
J Chem Phys. 2018 Dec 14;149(22):224301. doi: 10.1063/1.5063892.
3
Development of a southern oceanic air standard reference material.南大洋空气标准参考物质的研制
Anal Bioanal Chem. 2016 Feb;408(4):1159-69. doi: 10.1007/s00216-015-9218-9. Epub 2015 Dec 9.
4
Observational determination of surface radiative forcing by CO2 from 2000 to 2010.观测确定 2000 年至 2010 年二氧化碳的地表辐射强迫。
Nature. 2015 Mar 19;519(7543):339-43. doi: 10.1038/nature14240. Epub 2015 Feb 25.
5
The air-broadened, near-infrared CO2 line shape in the spectrally isolated regime: evidence of simultaneous Dicke narrowing and speed dependence.在光谱隔离状态下，空气展宽的近红外 CO2 谱线形状：同时存在 Dicke 变窄和速度依赖性的证据。
J Chem Phys. 2011 Aug 14;135(6):064308. doi: 10.1063/1.3624527.

近红外二氧化碳谱线形状中的空气展宽：量化N₂、O₂和Ar的贡献。

Air-broadening in near-infrared carbon dioxide line shapes: Quantifying contributions from , , and Ar.

作者信息

Adkins Erin M, Long David A, Hodges Joseph T

机构信息

National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.

出版信息

J Quant Spectrosc Radiat Transf. 2021 Aug;270. doi: 10.1016/j.jqsrt.2021.107669.

DOI:10.1016/j.jqsrt.2021.107669
PMID:38516121
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10956487/
Abstract

We measured air broadening in the (30012) ← (00001) carbon dioxide () band up to using frequency-agile rapid scanning cavity ring-down spectroscopy. By using synthetic air samples with varying levels of nitrogen, oxygen, and argon, multi-spectrum fitting allowed for the collisional broadening terms of each major air component to be simultaneously determined in addition to advanced line shape parameters at atmospherically relevant mixing ratios. These values were compared to broadener-specific line shape parameters from the literature. Fits to measured spectra were also constrained with results from requantized classical molecular dynamic simulations. We show that this approach enables differentiation between narrowing mechanisms in advanced line shape parameters retrieved from experimental spectra of limited signal-to-noise ratio.

摘要

我们使用频率捷变快速扫描腔衰荡光谱技术，测量了二氧化碳（）波段中从(30012)←(00001)直至 的空气展宽。通过使用含有不同氮气、氧气和氩气含量的合成空气样本，多光谱拟合不仅能在大气相关混合比下同时确定各主要空气成分的碰撞展宽项，还能确定高级线形参数。这些值与文献中特定加宽剂的线形参数进行了比较。对测量光谱的拟合还受到再量子化经典分子动力学模拟结果的约束。我们表明，这种方法能够在从有限信噪比的实验光谱中检索到的高级线形参数中区分展宽机制。