Testing a Paul trap through determining the evaporation rate of levitated single semi-volatile organic droplets
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Valenzuela, A.; Rica Alarcón, Raúl Alberto; Olmo Reyes, Francisco José; Alados Arboledas, LucasEditorial
Optical Soc Amer
Date
2020-11-09Referencia bibliográfica
Valenzuela, A., Rica, R. A., Olmo-Reyes, F. J., & Alados-Arboledas, L. (2020). Testing a Paul trap through determining the evaporation rate of levitated single semi-volatile organic droplets. Optics Express, 28(23), 34812-34824. [https://doi.org/10.1364/OE.410590]
Sponsorship
Horizon 2020 Framework Programme 654109 871115 754446; IISTA Research Centre; Universidad de Granada C-FQM-410-UGR18; Andalusia Regional Government P18-RT-3820; Spanish Government CGL2016-81092-R CGL2017-90884-REDT PGC2018-098770-B-I00 RTI2018-097864-BI00; Universidad de Granada (Athenea3i)Abstract
Rigorous knowledge of the optical fingerprint of droplets is imperative for the
understanding of complex aerosol processes. Here, a Paul trap is operated to store single
semi-volatile organic droplets in air. The droplets are illuminated with a green laser and the elastic
scattering is collected on a CMOS camera. The setup provides excellent performance in terms
of confinement and stability, allowing us to detect size changes of the order of few nanometres.
The stability also allows us to measure vapour pressures with remarkable reproducibility. This
approach supplies a robust method for the optical interrogation in the sub-micron range.