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DOI | 10.1029/2019GL084568 |
The Wavelength-Dependent Complex Refractive Index of Hygroscopic Aerosol Particles and Other Aqueous Media: An Effective Oscillator Model | |
Bain, Alison1,2; Rafferty, Aidan1,2; Preston, Thomas C.1,2 | |
2019-09-06 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Canada |
英文摘要 | We present an effective oscillator model for the wavelength-dependent complex refractive index of weakly absorbing aqueous solutions. The model is derived using the causal connection between the real and imaginary parts of the refractive index that is described through the Kramers-Kronig relation. Using cavity-enhanced Raman spectroscopy, we measure both the real and imaginary parts of the refractive index of several aqueous solutions whose optical properties are relevant to seawater, aqueous sea-salt particles, and aqueous organic aerosol. It is demonstrated that the effective oscillator model accurately describes both the real and imaginary parts of the refractive index of aqueous solutions across a wide range of water activities and optical wavelengths. Finally, through a comparison with measurements, we verify that mixing rule calculations utilizing oscillator parameters from solutions containing a single solute and water can be used to predict the optical properties of aqueous solutions containing multiple solutes. |
英文关键词 | refractive index water aerosol particles aqueous solution |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000485375200001 |
WOS关键词 | OPTICAL-PROPERTIES ; ABSORPTION ; WATER ; SIZE ; LIGHT ; SPECTROSCOPY ; ATTENUATION ; TEMPERATURE ; MIXTURES ; DENSITY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/186950 |
专题 | 气候变化 |
作者单位 | 1.McGill Univ, Dept Atmospher & Ocean Sci, Montreal, PQ, Canada; 2.McGill Univ, Dept Chem, Montreal, PQ, Canada |
推荐引用方式 GB/T 7714 | Bain, Alison,Rafferty, Aidan,Preston, Thomas C.. The Wavelength-Dependent Complex Refractive Index of Hygroscopic Aerosol Particles and Other Aqueous Media: An Effective Oscillator Model[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Bain, Alison,Rafferty, Aidan,&Preston, Thomas C..(2019).The Wavelength-Dependent Complex Refractive Index of Hygroscopic Aerosol Particles and Other Aqueous Media: An Effective Oscillator Model.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Bain, Alison,et al."The Wavelength-Dependent Complex Refractive Index of Hygroscopic Aerosol Particles and Other Aqueous Media: An Effective Oscillator Model".GEOPHYSICAL RESEARCH LETTERS (2019). |
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