Atmospherically relevant core-shell aerosol studied using optical trapping and Mie scattering

Stephanie Helen Jones, Andrew D. Ward and Martin King

Solid core-liquid shell aerosol have been trapped in a counter-propagating optical trap confirming potential core-shell morphology in the atmosphere. Mie spectroscopy can be used to measure the core radius and film thickness to 0.5 and 1 nm precision and measure the wavelength dependent refractive indices of silica (core) and oleic acid (shell).

DOI