Light source effects on aerosol photoacoustic spectroscopy measurements
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- 作者：James G. Radney ; james.radney@nist.gov ; Christopher D. Zangmeister
- 关键词：Photoacoustic spectroscopy ; Aerosol ; Absorption enhancement ; Coatings
- 刊名：Journal of Quantitative Spectroscopy and Radiative Transfer
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：187
- 期：Complete
- 页码：145-149
- 全文大小：360 K
- 卷排序：187
文摘
Choice of source laser can impact aerosol photoacoustic spectroscopy measurements. Measurements performed on soot coated with up to a monolayer of water. No extinction enhancement observed by a cavity ring-down spectrometer. Absorption enhancement (photoacoustic response) was laser and coating thickness dependent. Quasi-continuous wave laser yielded larger enhancements than a continuous wave laser.