Articles | Volume 13, issue 6
https://doi.org/10.5194/amt-13-3191-2020
https://doi.org/10.5194/amt-13-3191-2020
Research article
 | 
18 Jun 2020
Research article |  | 18 Jun 2020

Photophoretic spectroscopy in atmospheric chemistry – high-sensitivity measurements of light absorption by a single particle

Nir Bluvshtein, Ulrich K. Krieger, and Thomas Peter

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Short summary
Light-absorbing organic particles undergo transformations during their exposure in the atmosphere. The role these particles play in the global radiative balance is uncertain. This study describes high-sensitivity and high-precision measurements of light absorption by a single particle levitated in an electrodynamic balance. This high level of sensitivity enables future studies to explore the major processes responsible for changes to the particle's light absorptivity.
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